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- Frequently Asked Questions (FAQS);faqs.012
-
-
- 22. What are the Rock Ridge extensions?
- 23. Is a short technical introduction to these standards available?
- 24. Are there any ftp sites with good stuff related to CD-ROMs?
- 25. How do I write an MSDOS program that can access a cdrom using MSCDEX?
- 26. How do I mount an ISO-9660 disc on a Sun?
- 27. How do I use a CD-ROM with OS/2?
- 28. Which CD-ROM Drives will work with MicroSoft Windows-NT?
- 29. How do I read an audio cd track as digital data?
- 30. Why do CD-ROMs cost so much?
- 31. Why do all the bundle deals require me to buy a drive? What if I
- already have a drive?
- 32. Are alt.cd-rom archives available anywhere?
- 33. What is the shelf-life of a CD-ROM?
- 34. How should I handle my CD-ROMs? How do I clean them?
- 35. Which drives will work with Kodak Photo CD?
- 36. What is a "Multisession" CD drive?
- 37. How does Photo CD work?
- 38. Where can I get more information about the Kodak Photo CD?
- 39. Where can I get maps of the US on CD-ROM?
- 40. How do I put a CD-ROM Drive on a Novell network?
- 41. Are any CD-ROM Jukeboxes available?
- 42. Can I speed up my CD-ROM by using a cache?
- 43. Do you have any info about the CD-ROM filesystems for Amigas?
- 44. ???? Please send any other questions (and answers) that should
- be included in this FAQ to rab@cdrom.com.
-
- ==========================================================================
- 1. What are some good sources of CD-ROM discs?
-
- Jim Raehl has compiled an excellent list of sources for inexpensive
- CD-ROMs. His list is periodically posted to alt.cd-rom, and is available
- via anonymous ftp from cdrom.com:/pub/faq_disc.
-
- You can get a list of about 85 CD-ROM titles by sending a blank message
- to CD-ROM@micromed.net.netcom.com [ Several people have had trouble
- getting the list, so I have made it available for anonymous ftp from
- cdrom.com:/pub/micro.med ]
-
- ==========================================================================
- 1a. What are some good sources of CD-ROM discs in North America?
-
- ---------------------------------
- Buckmaster Publishing
- Route 3, Box 56
- Mineral, VA 23117
- 703-894-5777 or 800-282-5628
- A ham radio callbook database and 5000 public domain programs: $50
- ---------------------------------
- Bureau of Electronic Publishing
- 141 New Road
- Parsippany, NJ 07054
- 1 800 828-4766
- Publish lots of CD-ROM titles. Call them for a catalog.
- ----------------------------------
- CD-ROM INC
- 1667 Cole Blvd, Suite 400
- Golden, CO 80401
- 1 800 821-5245
- Many discs, drives and accessories. Call for free catalog.
- ------------------------------------
- The CD-ROM Source
- PO Box 20158
- Indianapolis, IN 46220
- Phone: (317) 251-9833
- ------------------------------------
- CDROMS Unlimited
- P.O. Box 7476
- Fremont, CA 94537-7476
- 1 510 795-4286 Call for catalog
- ------------------------------------
- CD-ROM User's Group
- Post Office Box 2400
- Santa Barbara, CA 93120
- 805-965-0265
- Bundle of 10 discs for $99.
- ------------------------------------
- Compustuff
- 2759 Medina Rd., Plaza 71
- Medina, OH 44258
- 216-725-7729
- ------------------------------------
- Computer Man
- 18546 Sherman Way, Suite B
- Reseda, CA 91335
- 818-609-0556
- ------------------------------------
- Computers At Large
- 18728 Cabernet Drive
- Saratoga, CA 95070-3561
- (408)255-1081, (408)255-2388 - FAX
- ------------------------------------
- Crazy Bob
- ERM Electronic Liquidators
- 37 Washinton
- St. Melrose, Mass 02176
- Order line: 800-776-5865
- Sells mostly outdated or surplus discs at low prices
- ------------------------------------
- EBSCO Subscription Services (CD-ROM Handbook)
- P.O.Box 325
- Topsfield, MA 01983
- 508-887-6667 800-221-1826 508-887-3923 (Fax)
- ------------------------------------
- EDUCORP
- 7434 Trade Street
- San Diego, CA92121-2410
- 1-800-843-9497
- ------------------------------------
- Faxon Co., Inc. (Access Faxon)
- 15 Southwest Park
- Westwood, MA 02090
- 617-329-3350 800-225-6055 617-461-1862 (Fax)
- ------------------------------------
- Knowledge Media
- 436 Nunneley Rd Suite B
- Paradise, CA 95969
- +1 916 872 3826, +1 916 872 3826 FAX, email: pbenson@ecst.csuchico.edu
- Graphics software CD-ROM
- ------------------------------------
- Mail Boxes Etc.
- 7657 Winnetka Ave.
- Conoga Park, CA 91306
- 818-700-1800
- ------------------------------------
- Mr. CD Rom
- PO Box 1087
- Winter Garden, FL 34777
- 800-444-mrcd
- 407-877-3834 FAX
- ------------------------------------
- NASA Space Science Data Center
- Code 933.4
- NASA Goddard Space Flight Center
- Greenbelt, MD USA 20771
- Phone (voice) 301 286 6695
- CDROMs of data from Voyager, Magellan and Viking for $6 each.
- If you have ftp capability, you can sample images from the two currently
- mounted CDROMS at ames.arc.nasa.gov in the directory SPACE/CDROM.
- ------------------------------------
- Nautilus
- 7001 Discovery Blvd
- Dublin, OH 43017-8066
- 1-800-637-3472
- Provides a CD-ROM of the month subscription. 13 CD-ROM's for $138.
- ------------------------------------
- Oxford University Press
- 2001 Evans Rd
- Cary, North Carolina 27513
- 800 451-7556
- Oxford English Dictionary on CD-ROM
- ------------------------------------
- Pacific HiTech, Inc.
- 4530 Fortuna Way
- Salt Lake City, UT 84124
- (800) 765-8369, (801) 278-2042, FAX: (801) 278-2666
- 71175.3152@CompuServe.com.
- Info-Mac Sumex-aim Macintosh CDROM
- ------------------------------------
- Prime Time Freeware
- 370 Altair Way, Suite 150
- Sunnyvale, CA 94086
- (408) 738-4832, (408) 738 2050 FAX, ptf@cfcl.com
- UNIX-related source code on CD-ROM
- ------------------------------------
- ProComp Computer
- 12503 Sherman Way
- No. Hollywood CA 91605
- ------------------------------------
- Profit Press
- 2956 N. Campbell Ave.
- Tucson, AZ 85719
- 602-577-9624
- MEGA-Rom, 600+ meg MSDOS, $79
- ------------------------------------
- Raynbow Software, Inc.
- P. O. Box 327
- Rapid City, SD 57709
- (605) 394-8227, louis@ce.ucsc.edu, CompuServe: 70410,413
- 5000 GIFs on CD-ROM with Search Engine for $55
- ------------------------------------
- Reed Reference Publishing
- Bowker Electronic Publishing
- 121 Chanlon Road
- New Providence, NJ 07974
- 1-800-323-3288
- 908-464-6800, 212-645-9700, 1-800-323-3328, info@bowker.com
- "Books in Print" on CD-ROM, bi-monthly subscription $1095, w/reviews $1595
- ------------------------------------
- ROM-BO
- 1300 Mohawk Blvd
- Springfield, OR 97477
- 800-536-DISK
- ------------------------------------
- Sound Electro Flight
- 4545 Industrial St. 5N
- Simi Valley, CA 93063
- 800-279-4824
- ------------------------------------
- Stanford University Press
- 415-723-1593
- CD-ROM with authoring system containing four books illustrating its use: $17
- ------------------------------------
- Sterling Software
- 1404 Ft. Crook Rd. South
- Bellevue, NE 68005-2969
- 800 643-NEWS, 402 291-2108, 402 291-4362, cdnews@Sterling.COM
- uunet!sparky!cdnews, ftp.uu.net:/vendor/sterling
- NetNews/CD: Usenet news on CD-ROM
- ------------------------------------
- TechCity
- 17706 Chatsworth St.
- Granada Hills, CA 91344
- ------------------------------------
- TigerSoftware
- 800 Douglas Entrance
- Executive Tower, 7th FLoor
- Coral Gables, Florida 33134
- 24-hour FAX: (305) 529-2990
- ------------------------------------
- Updata Publications, Inc. (CD-ROM Guide)
- 1736 Westwood Blvd
- Los Angeles, CA 90024
- 310-474-5900 800-882-2844 310-474-4095 (Fax)
- ------------------------------------
- Walnut Creek CDROM
- 1547 Palos Verdes Mall, Suite 260
- Walnut Creek, CA 94596
- 1 800 786-9907, 1 510 947-5996, 1 510 947-1644 FAX
- Snapshots of major internet archives on CD-ROM
- ------------------------------------
- Wayzata Technology Inc.
- P.O. Box 807
- Grand Rapids MN 55744
- 1 800 735-7321 Call for catalog
- ------------------------------------
- Yggdrasil Computing, Incorporated
- PO Box 8418
- Berkeley CA 94707-8418
- (510) 526-7531, fax: (510) 528-8508, yggdrasil@netcom.com
- Linux Operating system on CD-ROM
- ==========================================================================
- 1b. What are some good sources of CD-ROM discs in Europe?
-
- ------------------------------------
- Apex Software
- PO Box 174
- Battle
- East Sussex
- TN33 9AQ
- International: +44-424-830025 (voice or fax), UK: 0424-830025 (voice or fax)
- email: vincea@cix.compulink.co.uk
- ------------------------------------
- British Software Licensing
- 280 (T/L) West Princes Street
- Woodlands
- Glasgow G4 9EU
- United Kingdom
- +44-41-339-7264, Fax +44-41-334-1675, graham@gimble.demon.co.uk
- ------------------------------------
- CD-ROM Jacob
- Aarstrasse 98
- CH-3005 Bern
- Switzerland
- ------------------------------------
- CD ROM (UK) Ltd
- 8 Sheep St, Highworth
- Swindon, Wiltshire SN6 7AA
- United Kingdom
- 44-0793-861146, 44-0793-765331 (Fax)
- ------------------------------------
- EBSCO Subscription Services
- 3 Tyers Gate
- London SE1 3HX
- United Kingdom
- 44-71-357-7516
- ------------------------------------
- Faxon Europe, B.V.
- Postbus 197
- 1000 AD Amsterdam
- The Netherlands
- 31 (20) 91-05-91, 31 (20) 91-17-35 (Fax)
- ------------------------------------
- Micro Haus Limited
- P.O. Box 149
- Gloucester
- GL3 4EF
- United Kingdom
- ------------------------------------
- Mountain Rose Multi Media
- Kikkerveen 331
- 3205 XC Spijkenisse
- The Netherlands.
- Phone: +31 1880 33083 / Fax: +31 1880 41551 / Email: sterbbs@sus.eur.nl
- ------------------------------------
- STARCOM
- International Computer Services
- Limburggasse 45
- A-9073 Klagenfurt-Viktring
- Austria
- +43 (463) 29 67 22, +43 (463) 29 67 24 FAX
- ------------------------------------
- WasaWare Oy
- Palosaarentie 31
- SF-65200 VAASA
- Finland
- Telephone & Fax: +358 61 173365, Email: hv@uwasa.fi
- ==========================================================================
- 1c. What are some good sources of CD-ROM discs in Asia?
-
- ------------------------------------
- Software Studio
- Shop 217
- Olympia Shopping Center
- 255 King's Road
- North Point
- Hong Kong
- +852 510 7470 FAX
- ------------------------------------
- UniForce System Ltd.
- 903 Kin Tak Fung Comm. Bldg
- 467-473 Hennessy Road
- Hong Kong
- Voice: (852)838-6048 Fax: (852)572-4778
- ------------------------------------
- Cache Computer
- Shop 29, G/Fl., Golden Shopping Centre
- 146-152 Fuk Wah st., Shamshuipo
- Kowloon
- Hong Kong
- Voice: (852) 361-9975, FAX: (852) 387-9935
- ==========================================================================
- 1d. What are some good sources of CD-ROM discs in Australia/New Zealand?
- ------------------------------------
- The Cave MegaBBS
- PO Box 2009
- Wellington
- New Zealand
- BBS: +64 4 5643429 V22b, +64 4 564-5307 FAX, clear@cavebbs.gen.nz
- ------------------------------------
- CompuCD
- GPO Box 1624
- Canberra City
- ACT 2601
- Australia
- fax: +61 06 2319771
- ------------------------------------
- Ilb Computing
- 48 Nebo Drive
- Figtree Heights
- NSW 2525
- Australia
- +61 42 28 5827
- ------------------------------------
- Logicware
- 1 Riverbank Off. Vil.
- Cnr 1st St. & O'Shea Ter.
- Katherine, N'rn Terr. 0850
- Australia
- fax: +61 89 72 3412
- ==========================================================================
- 2. Can you recommend a good CD-ROM drive?
- ------------------------------------
- The NEC CD-ROM drives 336,37,73,74,83, etc. have received many favorable
- recommendations. NEC CD-ROM drive information can be FAX'ed to you. Call
- NEC Fastfacts at 800-366-0476, and then follow the directions. You will
- be prompted for a Catalog or Product Number. Catalog Number 2 is for
- CD-ROM and Product Number 730101 is for the CRD-73M and 730100 is for the
- CDR-73. Similarly for the CDR-37. No information was available on the
- CD-74. You will be prompted for your 10-digit FAX number and your local
- voice telephone number. If you haven't received your FAX with 30 minutes
- try again. For international callers, the Fastfacts FAX number is
- +1 708 860-9500x2621. You can get documents, and drivers, from the NEC
- BBS at +1 508 635-6328.
- ------------------------------------
- DAK has a slow but reliable drive for $199. For an extra $49 you can get
- a bundle of discs.
-
- DAK Industries Incorporated
- 8200 Remmet Avenue
- Canoga Park, CA 91304
- Orders: 818-888-8220, 800-DAK-0800
- Technical information: 800-888-9818
- ------------------------------------
- You can get information on Matsumi drives by calling their US HQ at
- (516) 752-7730. The Mitsumi office dealing with the SouthEast is in
- Dallas. (214) 550-7300, FAX: (214) 550-7424. In California, call
- (408) 970-0700.
- -----------------------------------
- Here is a matrix of information on a number of CD-ROM drives. Please
- send me any additions or corrections.
-
- Column
- A. Manufactuer
- B. Model Number
- C. Internal/External/Both
- D. Caddies N=No, S=Sony, P=Philips, X=NEC, O=Other
- E. Seek time in milliseconds
- F. Transfer rate in kilobytes/second
- G. SCSI - Y/N
- H. CDROM XA / PhotoCD compatable (N=No, S=Single-Session, M=multi-session)
- I. OS/2 Compatible - Y/N
- J. Windows NT Compatible - Y/N
- K. MPC Compatible - Y/N
- L. Quicktime Compatible - Y/N
- M.
- N. Approximate Street Price, in US dollars
- O. Recommended #yes/#no (Send email to recommend either yes or no)
- P. Phone #
- Q. Comments
-
- A B C D E F G H I J K L M N 0 P Q
- ===== ======== = = === === = = = = = = = === === ============ ==========
- Apple CD 150 - S --- --- Y - - - - - - --- 0/0 ------------
- Apple CD 300 - S --- --- Y M - - - - - --- 0/0 ------------
- Apple CD 300i - S --- --- Y M - - - - - --- 0/0 ------------
- Apple CD SC - S --- --- Y - - - - - - --- 0/0 ------------
- Apple CD SC+ - S --- --- Y - - - - - - --- 0/0 ------------
- CDRM Inc CR 1000i - - --- --- - - - - - - - --- 0/0 ------------
- Chinon 435 E S 350 150 Y S - - Y Y - --- 0/0 800-441-0222
- Chinon 435 I S 350 150 Y S - - Y Y - 369 0/0 800-441-0222
- Chinon 431 - S 350 --- Y S - Y Y Y - --- 0/0 800-441-0222
- Denon DRD-253 - - --- --- - - - - - - - --- 0/0 ------------
- Hitachi CDR-1700S - - --- --- - - - - - - - --- 0/0 ------------
- Hitachi CDR-1702 E N 450 40 N N N N N N 200 0/1 ------------ Obsolete
- Hitachi CDR-1750S - - --- --- - - - - - - - --- 0/0 ------------
- Hitachi CDR-3600 - - --- --- - - - - - - - --- 0/0 ------------
- Hitachi CDR-3650 I S 350 50 Y N - - N - - 300 1/0 ------------ workhorse
- Hitachi CDR-3700 I - 300 --- - - - - - - - --- 0/0 ------------
- Hitachi CDR-3750 - - --- --- - - - - - - - --- 0/0 ------------
- Magnavox CDD461RS E N 700 --- - - - - - - - 329 0/0 ------------
- Magnavox CDD462RS E N 400 --- - M - - Y - - --- 0/0 ------------
- Matsushita CD-521 I - 390 --- - - - - - - - --- 0/0 ------------
- MediaVis PAS B - --- --- Y S - N - - - 129 1/0 ------------
- MediaVis PAS-16 B - --- --- Y S - N - - - 150 1/0 ------------ 16-bit sound
- Mitsumi - N 500 150 N - N N - N - 169 0/2 ------------
- MtOptech SI-680 - - --- --- - - - - - - - --- 0/0 303-444-2851 Ruggedized
- NEC CDR 36 - - 500 150 Y - - - - - - --- 0/0 800-NEC-INFO Portable
- NEC CDR 37 - - 450 150 - - - - - - - --- 0/0 800-NEC-INFO Portable
- NEC CDR-73 E S 300 150 Y - - - - - - 649 0/0 800-NEC-INFO
- NEC CDR-73M E S 280 300 Y - - - - - - --- 0/0 800-NEC-INFO Fast
- NEC CDR-74 E S 300 300 - S - - - Y - --- 0/0 800-NEC-INFO
- NEC CDR-80 - X --- --- - - - - - - - --- 0/0 800-NEC-INFO
- NEC CDR-83 I S 300 150 Y - - - - - - 599 0/0 800-NEC-INFO
- NEC CDR-83M I S 280 300 Y - - - - - - --- 0/0 800-NEC-INFO
- NEC CDR-84 I S 300 300 - S - - - Y - --- 0/0 800-NEC-INFO
- NEC CDXG1 E - 500 --- - - - - - - - --- 0/0 800-NEC-INFO
- Philips CDD-461 E N --- --- - - - - - - - --- 0/0 800-722-6224
- Philips CDI-601 E - --- --- - - - - - - - --- 0/0 800-722-6224
- Philips CDI-602 E - --- --- - - - - - - - --- 0/0 800-722-6224
- Pioneer DRM-600 E O 600 150 Y S - - - - - 925 1/0 bbs4087482150 jukebox(x6)
- Pioneer DRM-604X E O --- 300 Y S - - - - - --- 1/0 bbs4087482150 jukebox(x6)
- Sanyo ROM 3000 E S 650 40 N N N N N N - --- 0/1 ------------ slow
- Sony CDU-531 I S --- 150 N S - - - - - --- 0/0 800-352-7669
- Sony CDU-535 I - 340 150 - - - - - - - --- 0/0 408-944-4335
- Sony CDU-541 - S --- 150 Y - - - - - - --- 0/0 408-434-6644
- Sony CDU-561 - S 300 300 Y M - - - - - --- 0/0 408-434-6644
- Sony CDU-6201 - S --- 150 N S - - - - - --- 0/0 408-434-6644
- Sony CDU-6205 - - --- --- - - - - - - - --- 0/0 408-434-6644
- Sony CDU-6211 - S --- 150 Y - - - - - - --- 0/0 408-434-6644
- Sony CDU-7204 - - --- --- - - - - - - - --- 0/0 408-434-6644
- Sony CDU-7205 E - --- --- - - - - - - - --- 0/0 408-434-6644
- Sony CDU-7211 - S --- 150 Y - - - - - - --- 0/0 408-434-6644
- Sony CDU-8012 - S --- 150 Y S - - - - - --- 0/0 408-434-6644
- Talon TA-100 - - 360 150 - - - - - - - --- 0/0 ------------
- Talon TA-200 - - 280 300 - - - - - - - --- 0/0 ------------
- Tandy CDR-1000 I N 800 175 N N - - - - - 200 1/0 ------------ Nice, Cheap
- Texel DM3021 - - 340 --- - - - - - - - --- 0/0 800-886-3935
- Texel DM3024 I - 265 300 Y S - - - - - 439 0/0 800-886-3935
- Texel DM5024 E - 265 300 Y S - - - - - 549 0/0 800-886-3935
- Toshiba TX-M3301 - - --- --- - - - - - - - --- 0/0 714-455-0407
- Toshiba XM3300 - - --- --- - - - - - - - --- 0/0 714-455-0407
- Toshiba XM3301 - - 325 150 Y - - - - - - --- 0/0 714-455-0407
- Toshiba XM3301B I S 325 150 Y S - - Y - - 499 2/0 714-455-0407 Works great
- Toshiba XM3301E1 - - --- --- - - - - - - - --- 0/0 714-455-0407
- Trantor T128 B - --- --- Y S - N - - - 100 1/0 ------------
-
- The NeXT CD-ROM is a Sony CDU-541.
- The Sony CDU-6211 is the same as the Sony CDU-7211.
-
- ==========================================================================
- 3. Where can I get caddies?
-
- Here are a few sources of caddies:
- ---------------------------------------------------------------
- CD-ROM INC
- 1667 Cole Blvd
- Suite 400
- Golden, CO 80401
- 1 800 821-5245
- Call for the latest price.
- ----------------------------------------------------------------
- EDUCORP
- 7434 Trade Street
- San Diego, CA 92121-2410
- 1-800-843-9497
- $55 for 10
- ----------------------------------------------------------------
- QB Products
- 1260 Karl Court
- Wauconda, IL 60084
- +1 800 323-6856 +1 708 487-3333
- Sony Caddies "Made in USA", 10 for $54, 1000 for $3900
- ----------------------------------------------------------------
- Walnut Creek CDROM
- 1547 Palos Verdes Mall, Suite 260
- Walnut Creek, CA 94596
- +1 800 786-9907, +1 510 947-5996, +1 510 947-1644 FAX
- Sony caddies "Made in Japan" - $4.95 each, $450 for 100
- ==========================================================================
- 4. Are there any good periodicals and publications on CD-ROMs?
-
- ------------------------------------------------------------
- A catalog describing CD-ROM publications and a newsletter is available from
-
- Future Systems
- P.O. Box 26
- Falls Church, VA 22040
-
- Telephone 800-323-DISC or 703-241-1799
- One of their books contains a list of about 1500 CD-ROM's.
- ------------------------------------------------------------
- CD-ROM Professional is a bi-monthly magazine with product reviews,
- technical articles, industry news, etc. This is a "must read" for
- anyone in the CD-ROM business. $39.95/year
-
- CD-ROM Professional Magazine
- 462 Danbury Road
- Wilton, CT 06897
- +1 800 248-8466
- ------------------------------------------------------------
- "The CD-ROM Directory" is available on either paper or CD-ROM from
-
- UniDisc
- 3941 Cherryvale Avenue,
- Soqeul, CA 95073
- (408) 464-0707
- ------------------------------------------------------------
- "CD-ROM Collecion Builder's Toolkit, 1992 Edition"
- Paul T. Nicholls
- Eight Bit Books, Weston, CT
- ISBN: 0-910-96502-1
- $39.95
- ------------------------------------------------------------
- CD-ROMS IN PRINT 1992
- An International Guide to CD-ROM, CD-I, CDTV & Electronic Book Products
- Meckler Publishing
- 11 Ferry Lane West
- Westport, CT 06880
- ------------------------------------------------------------
- Newsgroups and mailing lists:
-
- On the internet, the best source of information is the newsgroup
- alt.cd-rom, which is linked to the BITNET list CDROM-L.
- You can subscribe to CDROM-L by sending the following command to
- LISTSERV@UCCVMA.UCOP.EDU:
- SUBSCRIBE CDROM-L Your full name
-
- The internet newsgroup comp.multimedia is a good source of information
- on multimedia topics.
-
- CDROMLAN (available on usenet as bit.listserv.cdromlan) covers the
- use of CD-ROM products on local area or wide area networks. You can
- join the list be sending the following command to
- LISTSERV@IDBSU.IDBSU.EDU:
- SUBSCRIBE CDROMLAN Your full name
-
- CD-ROMs are in heavy use in libraries and government document
- repositories, both for access to indexes and for distribution of
- government data. The relevant lists are PACS-L
- (bit.listserv.pacs-l) and GOVDOC-L (bit.listserv.govdoc-l).
- Send to LISTSERV@PSUVM.PSU.EDU:
- SUBSCRIBE GOVDOC-L Your full name
- Send to LISTSERV%UHUPVM1.BITNET@VM1.NODAK.EDU
- SUBSCRIBE PACS-L Your full name
-
- Discussions of music on CD can be found in rec.music.cd.
-
- ==========================================================================
- 5. Why are CD-ROM drives so slow?
-
- Compact discs were originally designed for music. When you are
- listening to "Willie Nelson's Greatest Hits", you are accessing the
- data sequentially and at a very regular speed. The only time you need
- to seek is when you decide to skip over a song, or back up and listen
- to "Always on my Mind" one more time.
-
- In order to fit as much music as possible onto the disc, the data
- is recorded at the same linear density near the outer edge of the disc
- as it is near the center, so there is more information in the outside
- tracks than in the inside tracks. In order to deliver a steady rate
- of data, the linear velocity of the disc moving under the head is
- constant, so the angular velocity of the disc changes when the head
- moves from the center toward the outside tracks. This is no big deal
- when you are playing music, but when you are trying to do random access
- to a CD-ROM, the need to accelerate and decelerate the disc is the biggest
- obstacle to making it faster. Most magnetic discs spin at a constant
- angular velocity, so the data density decreases toward the outside of the
- disk, but seeks are faster.
-
- A few other reasons that CD-ROMs are slow: Optical disc heads tend to be
- heavier than magnetic disk heads, so they have more inertia, and take
- longer to stablize onto a new track. Many CD-ROMs contain too much data
- to make effective use of RAM caches.
-
- As time goes by, CD-ROM drives will get a little faster, but don't expect
- any miracles.
-
- ==========================================================================
- 6. Is it important to have a fast CD-ROM? Does 300ms vs 700ms really matter?
-
- It depends on what applications you will be using. Many CD-ROMs
- are just big archives of stuff, and you can copy individual programs
- to your hard disk before using them so speed is not really very
- important. But if you are going to be using large ramdom-access
- databases, or any kind of interactive multi-media applications, then
- the speed difference is very noticeable.
-
- ==========================================================================
- 7. Is it important to buy a fully SCSI compatible drive?
-
- Several CD-ROM drives only support a sub-set of SCSI, and usually
- come with their own semi-SCSI controller card. Full SCSI compatible
- drives usually cost more, but are better if you already have a SCSI
- controller and want to daisy chain several devices, or if you want to
- be able to use the drive on different machine types.
-
- ==========================================================================
- 8. How much does it cost to make a CD-ROM?
-
- You can get a master made for about $1300, and then about $1.50 per
- disc for duplication. So to make 1000 discs, it will cost you about
- ($1300 + (1000 * 1.50)) = $2800. Publishers often have `first-timer'
- specials with steep discounts off the list price. For instance, DMI
- recently had a special of mastering, 50 discs, and two hours of tech
- support for $750.
-
- If you only want a few discs, you can have single ISO-9660 `one-offs'
- made for about $200 for the first disc, and $100 for additional copies.
- ==========================================================================
- 9. Where can I get a CD-ROM published?
-
- I have used both of these companies, and highly recommend either:
-
- Digital Audio Disc Corporation
- 1800 North Fruitridge Avenue
- Terre Haute, IN 47803
- 812-462-8100, 812-466-9125 FAX
-
- Disc Manufacturing Inc.
- 4905 Moores Mill Road
- Huntsville, AL 35810
- 800-433-DISC, 205-859-9042, 205-859-9932 FAX
-
- DADC is a subsidiary of Sony, and DMI is a subsidiary of Philips.
- A more detailed list of 25 publishers in 8 countries is available via
- anonymous ftp in cdrom.com:/pub/publshrs.
-
- If you only want to make one disc, or just a few copies, there are
- several companies that offer this service:
-
- On-Site CD
- Saratoga, CA
- (408) 867-0514
- ISO-9660, Mac HFS, Call for price
-
- Optical Media International
- San Jose, CA
- (408) 376-3511
- omi@applelink.apple.com
- ISO-9660, Mac HFS, Call for price
-
- Walnut Creek CDROM
- 1547 Palos Verdes Mall, Suite 260
- Walnut Creek, CA 94596
- 1-800-786-9907, +1 510 947-5996, FAX: +1 510 947-1644, rab@cdrom.com
- ISO-9660, $195, $95 each for additional copies
-
- Young Minds Inc.
- 1910 Orange Tree Lane, Suite 300
- Redlands, CA 92374
- 714 335-1350, 714 798-0488 FAX, yngmnds!ayoung@ucrmath.ucr.edu
- Rock Ridge (Unix), $950
-
- ==========================================================================
- 10. Where can I find equipment to make my own CD-ROMs?
-
- If you want to do single copy `one-offs', or low volume CD production,
- there are recorders announced by JVC, Philips and Sony.
-
- JVC Personal ROM-Maker $12500 (complete system, including software)
- Philips CDD-521 $5500 (+ $1900 for software)
- Sony CDW-900E $10000 (???)
-
- You can buy the Philips drive with CDGEN software for ISO-9660
- discs from DataDisc (1-800-328-2347, FAX: +1 703-347-9085) for $7895.
- They recommend that you use it with the Adaptec 1542 SCSI Card.
-
- Optical Media International (1-408-376-3511, omi@applelink.apple.com)
- has Macintosh HFS premastering software for the Philips CDD-521. The
- program is called "Quicktopics" and the cost is $2500.
-
- The JVC drive comes with software for making ISO-9960, Apple HFS, and
- hybrid ISO-9660/HFS discs. [ If anyone knows anything more about these
- hybrid discs, please let me and I will include the information here.]
-
- Here are some phone numbers you can call for more info:
-
- JVC Product Information: +1 714 965-2610
- Philips Consumer Electronics: +1 615 475-8869
- Sony Computer Peripheral Products: +1 800 352-7669
-
- The blank discs for these drives cost about $30 each. They are not
- the same as a normal CD. The metal data surface is gold instead of
- aluminum. The recorder uses a high powered laser to burn pits in
- the metal film. It takes about half an hour to burn each disc.
-
- The cheapest price I have found for 74 minute (650 meg) blanks is
- $31 quantity ten, $29 quantity 100, and $27 quantity 500 from
- DataWare (1-510-942-3111, ask for Jeff Caplan). The 68 minute
- (600 meg) discs are usually about a buck cheaper.
-
- ==========================================================================
- 11. How much information will fit on a CD-ROM?
-
- It depends on the drive. Almost all CD-ROM drives will handle up to
- 620 megabytes with no problems. Many newer drives can read discs with
- over 700 megs.
-