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- FILE: Notice.txt - 11/20/90
-
- Notice to Warp/UnWarp users:
-
- If you are currently using the Warp/UnWarp combination you SHOULD
- switch to DMS. Warp/UnWarp are no longer being supported so you will
- never see anymore updates. SDS Software holds the sole copyright
- and source to the above programs. Any version beyond Warp 1.11 and
- UnWarp 1.02 are strictly fake and have no advantages. They are not
- authorized and chances are that it is either a trojan horse or just
- a filezapped older version.
-
- With the release of DMS there is NO reason to still be using
- Warp/UnWarp. DMS packs faster and much better and for most modes
- unpacks faster than UnWarp. The compression/decompression routines
- have been optimized in 68000 machine language and we are constantly
- trying to improve. Currently our routines outperform every available
- compressor. What follows is a short comparison.
-
- The disk used for compression was a stock, unmodified Workbench 1.3 disk,
- to and from drive DF0: on a standard Amiga 2000 , no accelerator boards.
- Since Zap does not ignore unused sectors and the file compressors cannot,
- the compression was done with the NOZERO option on DMS and Warp and
- the -m option on Lhwarp. There were only 60 free sectors on the Workbench
- 1.3 disk so the difference is negligible but this was done to get
- the most accurate comparisons.
-
- Compressed Size Compression Time Decompression Time
-
- DMS (cmode 4 NOZERO) 374K 15:05 2:43
-
- DMS (cmode 3 NOZERO) 399K 11:05 1:06
-
- DMS (cmode 2 NOZERO) 522K 6:18 1:13
-
- Warp 1.11 NOZERO 531K 11:20 1:29 (UnWarp)
-
- Lhwarp 1.40 -m 414K 15:21 3:27
-
- Zap 1.41 (mode 9) 441K > 60 mins. 1:45
-
- PKAZIP* 395K > 30 mins. -
-
- LHARC 1.20* 396K > 30 mins. -
-
- TurboImploder* 384K > 30 mins. -
-
- PowerPacker 3.0* 403K > 30 mins. -
-
- * - These programs are file compressers. To facilitate the comparisons
- a 901120 byte 'image' file of the disk was created and that was
- compressed.
-
- As you can see, DMS easily outperforms the competition. CMODE 4
- provides the best in compression while CMODE 3 gives the best size/speed
- ratio. The compression routines developed for DMS will be incorporated
- into our new FileMasher compresser to be released soon.
-
- DMS is currently being ported to MS-DOS , Atari ST, and Macintosh
- personal computers.
-