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- Newsgroups: comp.sys.mac.hardware
- Path: sparky!uunet!convex!darwin.sura.net!mojo.eng.umd.edu!disney.src.umd.edu!josip
- From: josip@eng.umd.edu (Josip Loncaric)
- Subject: Re: 256-MB optical drives?!!?
- Message-ID: <1992Nov10.165615.2164@src.umd.edu>
- Sender: news@src.umd.edu (C-News)
- Organization: Project GLUE, University of Maryland, College Park
- References: <MJKOBB.92Nov9173341@media-lab.media.mit.edu>
- Distribution: comp
- Date: Tue, 10 Nov 1992 16:56:15 GMT
- Lines: 50
-
- In article <MJKOBB.92Nov9173341@media-lab.media.mit.edu> mjkobb@media.mit.edu (Michael J Kobb) writes:
- >Greetings!
- >
- > Well, this figures. Just when I was about ready to plunk down the
- >money on a 128Mb 3.5" optical drive, what do I see looking through
- >MacWorld? A 256Mb drive, that uses similar cartridges, and can
- >still read and write the old format! Obviously, more is better in
- >at least one way of looking at things, and this drive also claims to
- >have double the transfer rate.
- >
- > So: anybody got one? How are they, compatibility-wise? What's
- >the best vendor/price? The only ones I've seen are based on a MOST
- >mechanism, which didn't fare well in MacUser's tests (on their 128Mb
- >version). Does Sony or Ricoh make a 256Mb version? Is there
- >actually a standard? What're the possibilities of upgrading a 128?
- >Is it just a new controller board, or a whole new mechanism?
- >
- > Comments?
- >
- >Thanks,
- >--Mike
-
- As far as I know, the MOST mechanism is the only one with 256Mb capacity
- at this time. But, 182Mb is a standard, 256Mb isn't (yet). I have no
- clue if what MOST did will ever become a standard, somehow it seems
- other manufacturers might do things differently. So, at this point
- I prefer the 128Mb (standard) versions. Need 256Mb? Just use two
- cartridges! Need 256Mb on a SINGLE 3.5" cartridge? Buy MOST mechanism
- today, or hedge your bets by waiting for a standard to emerge.
-
- Today, the cost incentive for buying 256Mb drives just isn't there.
- You pay extra to have 256Mb on a single cartridge. If you do not mind
- splitting 256Mb into two cartridges, a 128Mb drive + 2*n 128Mb cartridges
- costs less than a 256Mb drive + n 256Mb cartridges for any reasonable
- value of "n". Right now cost and lack of universal standard mean that
- most users would be better off buying a standard 128Mb 3.5" optical drive.
-
- Speed improvement? Yes, it's there, but higher RPM 128Mb mechanisms (like
- Epson's) also boost data rates, and newer mechanisms (eg. Pinnacle, in this
- week's MacWeek) claim even faster seek times (down to 19ms, I'm told).
- So it would seem that comparable performance can be found in 128Mb standard.
-
- My comments are based on looking at various options, not on experience
- with any of the above mentioned alternatives. People with direct experience
- might disagree.
-
- --Josip
-
-
-
-