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Old 12 August 2012, 22:15   #6
prowler
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Join Date: Aug 2008
Location: Sidcup, England
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This disk image cannot be fixed without some new data.

The SoundFiles/Sound0 file has a checksum error on Disk Block 41. This is Sound0's 262nd data block, which is damaged - probably from offset $4F, and the 263rd and 264th data blocks are zeroed out.

The 141524 byte file is intact both before these blocks and beyond, but the adjacent byte sequences are unique on the disk.

I haven't checked the other files for integrity; there may be further damage caused by other zeroed-out data blocks in the range of offsets $42000-$4B9FF, $4BC00-$4CFFF, $83200-$833FF, $84200-$859FF, $85E00-$8EFFF, $B1600-$C75FF and $C8200-$C8BFF. My initial concern was to investigate the possibility of fixing the checksum error, and there are some 420 blocks not used. (Zeroed-out data blocks don't, of course, cause checksum errors.)

As this thread is a request, here is a full directory listing of the disk's contents:

Code:
Directory "df0:"
c                            Dir ----rwed 14-Jan-91 22:55:32
devs                         Dir ----rwed 14-Jan-91 22:55:39
fonts                        Dir ----rwed 07-Jul-89 17:42:02
l                            Dir ----rwed 07-Jul-89 17:42:13
libs                         Dir ----rwed 07-Jul-89 17:42:24
s                            Dir ----rwed 14-Jan-91 22:56:16
SoundFiles                   Dir ----rwed 07-Jul-89 17:44:22
Bild2                      51296 ----rwed 07-Jul-89 17:45:42
spiele                       Dir ----rwed 07-Jul-89 17:44:24
Bild0                      51296 ----rwed 01-Mar-91 13:37:53
Bild1                      82016 ----rwed 01-Mar-91 13:37:41
Bild4                      20096 ----rwed 07-Jul-89 17:45:59
Bild3                      20096 ----rwed 07-Jul-89 17:45:52
Disk.info                    606 ----rwed 07-Jul-89 17:46:19
Bild5                      15936 ----rwed 07-Jul-89 17:46:05
Daten                        482 ----rwed 07-Jul-89 17:46:07
disk.dat                   29920 ----rwed 07-Jul-89 17:46:17
Napoleon_V1.0.info           778 ----rwed 07-Jul-89 17:47:08
festplattenbatch             315 ----rwed 02-Mar-91 00:43:42
NapoleonHD                  3636 ----rwed 01-Mar-91 16:15:41
NapoleonHD.info              398 ----rwed 07-Jul-89 17:46:29
Napoleon_V1.0              86348 ----rwed 02-Mar-91 00:43:01
napoleon.info               1174 ----rwed 01-Mar-91 16:25:03
.info                         50 ----rwed 15-Jan-91 00:47:17
vorspannansi                1756 ----rwed 14-Jan-91 22:56:58
TARKUS TEAM in 1991          Dir ----rwed 14-Jan-91 22:59:03
17 files - 9 directories - 761 blocks used

Directory "df0:c"
setmap                      4500 ----rwed 07-Jul-89 17:41:24
run                         2324 ----rwed 07-Jul-89 17:41:26
EndCLI                       732 ----rwed 07-Jul-89 17:41:27
Rename                       664 ----rwed 07-Jul-89 17:41:29
Copy                        8128 ----rwed 07-Jul-89 17:41:34
obpl                        1836 ----rwed 07-Jul-89 17:41:37
LoadWb                      2460 ----rwed 07-Jul-89 17:41:41
Type                        2284 ----rwed 13-Aug-88 18:03:25
8 files - 56 blocks used

Directory "df0:devs"
keymaps                      Dir ----rwed 07-Jul-89 17:41:43
system-configuration         232 ----rwed 14-Jan-91 23:08:11
1 file - 1 directory - 4 blocks used

Directory "df0:devs/keymaps"
d                           1516 ----rwed 07-Jul-89 17:41:45
1 file - 4 blocks used

Directory "df0:fonts"
ruby.font                    784 ----rwed 07-Jul-89 17:41:50
ruby                         Dir ----rwed 07-Jul-89 17:41:51
garnet                       Dir ----rwed 07-Jul-89 17:41:59
garnet.font                  524 ----rwed 07-Jul-89 17:42:03
2 files - 2 directories - 10 blocks used

Directory "df0:fonts/ruby"
8                           3524 ----rwed 07-Jul-89 17:41:53
1 file - 8 blocks used

Directory "df0:fonts/garnet"
win.c                       7714 ----rwed 07-Jul-89 17:41:57
9                           3876 ----rwed 07-Jul-89 17:42:01
2 files - 26 blocks used

Directory "df0:l"
Port-Handler                1364 ----rwed 07-Jul-89 17:42:08
Disk-Validator              1848 ----rwed 07-Jul-89 17:42:11
Ram-Handler                 6200 ----rwed 07-Jul-89 17:42:16
3 files - 23 blocks used

Directory "df0:libs"
mathtrans.library           4280 ----rwed 07-Jul-89 17:42:20
icon.library                5996 ----rwed 07-Jul-89 17:42:23
diskfont.library            3968 ----rwed 07-Jul-89 17:42:27
3 files - 32 blocks used

Directory "df0:s"
startup-sequence              46 ----rwed 14-Jan-91 22:56:17
1 file - 2 blocks used

Directory "df0:SoundFiles"
sound0                    141524 ----rwed 07-Jul-89 17:43:26
sound1                      1374 ----rwed 07-Jul-89 17:43:31
sound3.info                  488 ----rwed 07-Jul-89 17:43:33
sound2                      7952 ----rwed 07-Jul-89 17:43:38
sound3                       498 ----rwed 07-Jul-89 17:43:40
sound4                      8216 ----rwed 07-Jul-89 17:43:45
sound5                     10660 ----rwed 07-Jul-89 17:43:51
sound6                      5094 ----rwed 07-Jul-89 17:43:55
sound7                      7640 ----rwed 07-Jul-89 17:43:59
sound8                      5910 ----rwed 07-Jul-89 17:44:04
sound9                      7922 ----rwed 07-Jul-89 17:44:08
sound7.info                  488 ----rwed 07-Jul-89 17:44:10
.fastdir                     420 ----rwed 07-Jul-89 17:44:13
sound4.info                  488 ----rwed 07-Jul-89 17:44:15
sound9.info                  488 ----rwed 07-Jul-89 17:44:17
sound8.info                  488 ----rwed 07-Jul-89 17:44:19
sound2.info                  488 ----rwed 07-Jul-89 17:44:21
sound6.info                  488 ----rwed 07-Jul-89 17:44:23
18 files - 414 blocks used

Directory "df0:spiele" is empty

Directory "df0:TARKUS TEAM in 1991" is empty

TOTAL: 57 files - 12 directories - 1340 blocks used
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