============================ README.TXT ====================================== This file describes the features that have been added to DiskDupe and the bugs that have been fixed. =============================================================================== ============ Version 3.31 8/12/91 ============ Faster Copies ------------- DiskDupe will now sense how much data is on the disk and only write that much. It does this by looking for tracks that are filled with the F6 fill byte. When formatting or verifying, however, it will do the entire disk. ============ Version 3.30 7/22/91 ============ Deleting Files -------------- If you would like to delete an image file from within DiskDupe, use the File command from either the Source or Destination menus, highlight the file you want to delete and press . Read-Only Image Files --------------------- Once you create an image file, DiskDupe will now let you mark it as a read-only file. Interleaved Disks ----------------- DiskDupe can now copy Unix disks that have an interleave of 3. The copies it makes, however, will have an interleave of 1. Step Rate Changes ----------------- The stepping rates were changed slightly to work with a wide variety of drives at full speed. WD37C65, Dell Computer Problem ------------------------------- The problems that occured on some computers that use the Western Digital WD37C65 controller (like some Dell and Northgate computers) have been fixed. 720k to 1.2Mb ------------- Some computers had problems copying a 720k disk to a 1.2Mb disk. This has been fixed. DOS 5.0 Format /U ----------------- When formatting a disk that will be used as a master disk, it is fastest to use the DiskDupe Format command with Format Option set to ALWAYS. If you are going to use the DOS 5.0 Format command, use the FORMAT /U option to erase the entire disk. This will allow DiskDupe to make faster copies of this disk. ============ Version 3.24 5/23/91 ============ /DUP Pauses After Copying is Done --------------------------------- When using the /DUP command, DiskDupe will pause after copying is done. Message After Copying Changed ----------------------------- The message that appears after copying is done was changed to "Press any key to return to menu." ============ Version 3.23 5/1/91 ============ Non-Standard Controller Cards ----------------------------- On some non-standard floppy controller cards, DiskDupe would not work. This was because they would reset the data rate when the drive motor was turned on. DiskDupe now always resets the data rate to work with these cards. ============ Version 3.22 4/28/91 ============ "General Failure Error" ----------------------- On some computers, when reading a disk right after DiskDupe, DOS would report a "General Failure Error" even though the disk was good. The workaround for this was to pull the disk out of the drive, type several times and then put the disk back in. This has been fixed so that you no longer need to do this. However, if you do a DIR of a 360k disk and then use DiskDupe to copy a 1.2Mb disk, when you exit to DOS and do a DIR, you will get an error until you pull the disk out of the drive and put it back in. ============ Version 3.21 4/16/91 ============ UNIX Disks ---------- Fixed the problem that occured on some Unix disks with empty tracks at the front. DiskDupe would sometimes not copy them correctly unless these empty tracks were "dirtied" with data. ============ Version 3.20 4/10/91 ============ Faster 3" Copies ---------------- On 3" drives, increased stepping rate to copy disks faster. To support slower drives, it makes sure that the head is all the way in before writing to the disk. Standby Drive Command Line -------------------------- Use "DISKDUPE DISK1 AB:" to access the StandBy drives from the command line. ============ Version 3.13 3/5/91 ============ 386/33 and 486 Problems ----------------------- On some 386/33 and 486 computers, DiskDupe would not recognize a disk in the drive or would behave erratically. 3" Drive Problems ----------------- Some older 3" drives would occasionally have problems copying a disk. The step rate was slowed down to fix this. Faster 1.4Mb Copies ------------------- Changed the format gap when copying a 1.4Mb disk from $6C to $5C to produce faster copies. ============ Version 3.12 2/25/91 ============ 720k Disks in 1.4Mb Drive ------------------------- On some 1.4Mb drives, you would have to setup the drive as a 720k drive to copy 720k disks. 1.2Mb Direct Conversions ------------------------ Copying a 1.2Mb disk to 1.4Mb drive will not require that you set the 1.4Mb drive as a 1.2Mb drive. "Couldn't build menu 7" ----------------------- On some computers DiskDupe would halt with this message when it first started. /C Ignored ---------- If "DISKDUPE A: A: /C /DUP" was entered, anything after the /C was ignored Workaround was to use /C0, this has been fixed so /C is same as /C0 ============ Version 3.11 11/2/90 ============ /DUP Hang on Exit ----------------- When using DiskDupe from the command line with a command like: DISKDUPE A: B: /C1 /DUP it would occasionally hang the computer on exit so that it was necessary to reboot it. This has been fixed. =========== Version 3.1 10/24/90 =========== Auto Sensing ------------ When copying disks manually, DiskDupe now senses when a disk has been inserted into the disk drive so that you no longer have to press after the disk has been changed. Auto Sensing has a safety feature to prevent overwriting a disk that has been accidently left in the drive. Whenever DiskDupe is writing to a disk, it makes sure that any disk in the drive is taken out first. If you want to use the disk in the drive, take it out and re-insert it or press . When using the A: & B: Standby Drive option, this safety feature is only turned on for the first disk. Auto Sensing keeps the drive light on all the time. When DiskDupe alerts you, it is safe to take out the disk. 5" to 3" Conversions -------------------- DiskDupe now lets you copy a 5" disk to a 3" disk directly. The 3" disk will be formatted to look like a 5" disk so only half of the 3" disk will be used. Bad Disk Alarm -------------- To make sure you don't accidently put a bad disk in the wrong stack when copying manually, DiskDupe will now sound an alarm whenever it encounters a bad disk. It will also tell you which drive the bad disk is in which is helpful when using the Standby Drive. XT Run Time Error 201 --------------------- On some XT clones, DiskDupe would sometimes halt when it was first starting up with Run Time Error 201. This has been fixed. ================================= END ========================================