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- DISK COPY FAST Copyright 1992-1995 Chang Ping Lee page 1
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- 1. INTRODUCTION:
-
-
- This document only contains information about new features in
- DISK COPY FAST beta v4.94. Please refer to DCF494.DOC for basic
- operation of the software.
-
-
- DISK COPY FAST v5.0 will include many enhancements. Because of
- the many changes to the program, it is very difficult to make
- sure that it is fully compatible with all hardware and software
- combinations. Although it has already undergone extensive
- testing, some bugs may still remain. Therefore, this wide beta
- release is being made.
-
-
- All suggestions, and bug or compatibility problem reports are
- very welcome and appreciated.
-
-
- DISK COPY FAST v5.0, DISK COPY PLUS v3.0 and DISK UTIL PACK v3.0
- are expected to be released by May 1, 1995. (Note: no guarantee
- on the actual release date.)
-
-
-
- DISK COPY FAST Copyright 1992-1995 Chang Ping Lee page 2
-
-
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- 2. NEW FEATURES
-
-
- 1. PS/2 is now supported. Thanks to Mr. Robert Everett for his
- help in making this possible.
-
-
- 2. Many odd-format disks are now supported. This includes
- Microsoft DMF, IBM XDF (*) and selected FDFORMAT formats.
- Users can also duplicate Macintosh high density disks with
- DISK COPY FAST on the PC platform. Target disks can be
- formatted on the fly for many of these formats. Please see
- the following two sections for specific details and
- limitations.
-
-
- 3. The /a option has been greatly enhanced. When ON (default),
- DISK COPY FAST checks the track layout of both the source and
- target disks before processing. This prevents the mistake of
- copying a double density disk to a high density disk, but
- still allows flexibility should this operation be desired.
-
-
- 4. The feature of auto formatting target disks has been greatly
- enhanced.
-
-
- * Support for XDF format is limitted to legal backup purpose.
- Users must have legal, original copy of such format and can
- only produce one backup copy. Advanced feature, such as image
- file, hot key for multiple copies, etc., are disabled for XDF
- format.
-
-
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- DISK COPY FAST Copyright 1992-1995 Chang Ping Lee page 3
-
-
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- 3. DISKETTE FORMATS SUPPORTED
-
-
- For convenience, the term "non-standard format" refers to all
- formats that are not widely used today. This includes 3.5"
- diskettes not formatted as 720KB or 1.44MB and 5.25" diskettes
- not formatted as 360KB or 1.2MB diskettes.
-
-
- Diskette formats supported by DISK COPY FAST are divided into
- the following four groups. Except for the types in group 4, DISK
- COPY FAST can format a target on the fly.
-
-
- 1. Standard formats with valid boot sectors. This includes
- 360KB, 1200KB in 5.25" drive and 720KB, 1440KB in 3.5" drive.
-
-
- 2. Standard formats with invalid boot sectors. This includes
- non-DOS disk such as MAC HD disk and DOS disks that are
- infected by virus or have been disinfected from virus but
- still have invalid boot sectors. By default, DISK COPY FAST
- will give warning, but allow users to choose to "Ignore" it.
- This warning can be turned off completely by the /v- option.
-
-
- 3. Selected non-standard formats with valid boot sectors. This
- includes Microsoft DMF, IBM XDF and selected formats by
- formatting programs such as 800K and FDFORMAT. Specifically,
- the following formats are supported and can be formatted on
- the fly.
-
- a. Microsoft DMF
- b. IBM XDF
- c. 3.5" high density disks formatted to 1680KB or 1722KB.
- d. 5.25" high density disks formatted to 1440KB or 1476KB.
- e. 5.25" double density disks formatted to 800KB.
-
-
- 4. Other non-standard formats with valid boot sectors. DISK COPY
- FAST can only copy disks of this group to pre-formatted
- targets.
-
-
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- DISK COPY FAST Copyright 1992-1995 Chang Ping Lee page 4
-
-
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- 4. MORE ABOUT ODD-FORMAT SUPPORT
-
-
- Usually, the purpose of "odd-format" formatting is to increase
- the capacity of a floppy disk. So far, the largest capacity
- boost we have found is the IBM XDF format which is used in OS/2
- releases. The XDF format uses larger sector sizes to increase
- the capacity of 3.5" high density disk from 1.44MB to 1.836MB.
-
-
- However, except in very few cases, some kinds of tradeoff do
- exist. Usually the access speed is slowed down significantly,
- and in some cases the reliability may suffer also. For example,
- some formats use more than 80 tracks. As the read/write head
- moves toward the center, the length of a track gets shorter.
- This means the same amount of data is packed in a smaller area.
- Some users may not feel comfortable using such formats for
- critical data while others may feel that the difference in
- length between the 80th track and the 82th track is not that
- significant.
-
-
- Based on these considerations, we chose to support on-the-fly
- formatting for two formats each of the 3.5" and 5.25" high
- density disks. For 3.5" high density disks, we support 1680KB
- (80 tracks) and 1722KB (82 tracks) formats. For 5.25" high
- density disks, we support 1440KB (80 tracks) and 1476KB (82
- tracks) formats. Other formats can be copied without on-the-fly
- formatting as long as the boot sector is intact.
-
-
-
- DISK COPY FAST Copyright 1992-1995 Chang Ping Lee page 5
-
-
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- 5. SUGGESTIONS AND BUG REPORTS
-
-
- All suggestions are welcomed and very much appreciated.
-
-
- Although this is a wide beta release, it has already undergone
- extensive testing. Should you feel there is any compatibility
- problem or even a bug, please send your reports to DCF Software.
-
-
- Please make sure the problem is repeatable, and please describe
- it as detailed as possible. Information of the system, DCF
- commands used before a problem shows up and the description of
- how the problem shows up will be very helpful. For example,
-
- "I run DCF under Windows on a 486/33MHz with EISA bus. I execute
- READ command and it reads a 1.2 MB disk in a 1.2MB drive without
- problem. Then I use the COMPARE command to compare the same disk
- and it turns out OK too. But, when I proceed to use the WRITE
- command to write to another 1.2MB disk it stops after a few
- tracks. The Information box/window shows it's track 9. A red box
- pops up with message "Diskette sector not found" and error code
- 1234h-5678h. When I press the right mouse button DCF suddenly
- quits and gives me yet another error code 123h-456h. I tried it
- several times with exactly the same commands sequence and this
- problem always happened."
-
-
- How to contact the author:
-
-
- 1. Call the PIE BBS in Sunnyvale, CA, U.S.A. at (408) 733-4670.
-
- Please leave a message to CHANG LEE in the Shareware Authors
- Conference on this BBS.
-
-
- 2. CompuServe Information Service (CIS)
-
- Please send email to 71053,3517.
-
-
- 3. You can also send your suggestions, questions and/or
- registration to the following address.
-
- Chang Ping Lee
- P.O. Box 60064
- Palo Alto, CA 94306
-
-
-
- DISK COPY FAST Copyright 1992-1995 Chang Ping Lee page 6
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-
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- 6. ADVERTISEMENT
-
-
- Imagine that you can read a standard format disk, convert it to
- the highest capacity (except XDF format,) then format, write and
- compare the target, all done in a single pass! No more slow
- formatting by FDFORMAT or similar utilities while you enjoy the
- maximum flexibility.
-
-
- Order DISK COPY PLUS today, receive the latest version, plus a
- free update when DISK COPY PLUS v3.0 is ready.
-
-
- NOTE: 1. The latest version of DISK COPY PLUS is v2.8 which does
- NOT include the new features in this DISK COPY FAST
- beta v4.94.
-
- 2. You need to mention this offer in the order form to
- qualify the free update.
-
- 3. DISK COPY PLUS v3.0 is expected to be released by
- May 1, 1995. (Note: no guarantee on the actual release
- date.)
-
-