I need a little help dumping Descent 2 (PC) (Page 1) — General discussion

1 Topic by r09 2009-02-11 21:33:11

r09
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From: Spain
Registered: 2008-04-19
Posts: 316

So, I've just bought the European version of D2, which isn't in the database (but the US version is), and I'm having a little trouble with the offsets. I'm getting a write offset of 0 samples with both px_d8 and the "going back 150 sectors" method (my drive is a PX-708A, so the read offset is 30):

3DE5D18BE275412AB6CF36D416DF4ED8
34F4977B2EA35C79F9E2C2C99196EC6E
CDEC558DFF257CD3C8EEB37785DFA321
B9D872DAA59B3B2B535F7DF821824B04
4D2B4B76A0BF780C2285D9A31AF9CB02
D7419EB068742EA75C7A414BA985B73D
DE61D81C5A89FB26C35AD1FB1C4349F1
F6C4CD43B95FA52400FFFFFFFFFFFFFF
FFFFFF00018200610028001E80086006
A802FE8180606028281E9E886866AEAA
FC7F01E0004800368016E00EC8045683
7EE1E0484836B696F6EEC6CC52D5FD9F
01A8007E80206018280A9E8728629EA9
A87EFEA0407830229419AF4AFC3701D6
805EE0384812B68DB6E5B6CB36D756DE
BED8705AA43B3B53537DFDE181886066

0000 : 3D E5 D1 8B 85 5A B7 9C  B6 CF 36 D4 16 DF 4E D8   =....Z....6...N.
0010 : 7B 71 97 7B 2E A3 5C 79  F9 E2 C2 C9 91 96 EC 6E   {q.{..\y.......n
0020 : CD EC 55 8D FF 25 C7 DB  D0 84 9D F1 08 3B A3 21   ..U..%.......;.!
0030 : B9 D8 72 DA A5 9B 3B 2B  53 5F 7D F8 21 82 0B 04   ..r...;+S_}.!...
0040 : EC 26 E5 FE D7 23 78 0C  22 85 D9 A3 1A F9 CB 02   .&...#x.".......
0050 : D7 41 9E B0 68 74 2E A7  5C 7A 81 18 81 9B B5 BB   .A..ht..\z......
0060 : 34 AA D8 1C 5A 89 FB 26  C3 5A D1 FB 1C 43 49 F1   4...Z..&.Z...CI.
0070 : F6 C4 1C 43 05 B7 BF 50  00 00 00 00 00 00 00 00   ...C...P........
0080 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
0090 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................

But when I dump the disc with EAC (+30 combined offset), it seems that a small part of the end of every track gets "shifted" into the pregap of the next track. For example, this is the end of track 3:

0750 : 01 00 FE FF FD FF 01 00  03 00 FE FF FC FF 01 00   ................
0760 : 03 00 FE FF FC FF 01 00  03 00 FE FF FC FF 01 00   ................
0770 : 03 00 FE FF FC FF 01 00  03 00 FE FF FC FF 01 00   ................
0780 : 03 00 FE FF FC FF 01 00  03 00 FE FF FC FF 01 00   ................
0790 : 03 00 FE FF FD FF 01 00  01 00 FE FF FF FF 01 00   ................
07A0 : 00 00 FE FF 01 00 01 00  FE FF FE FF 02 00 01 00   ................
07B0 : FC FF FE FF 03 00 01 00  FC FF FE FF 03 00 01 00   ................
07C0 : FC FF FE FF 03 00 01 00  FC FF FE FF 03 00 01 00   ................
07D0 : FC FF FE FF 03 00 01 00  FD FF FE FF 01 00 01 00   ................
07E0 : FF FF FE FF 00 00 01 00  01 00 FE FF FE FF 01 00   ................
07F0 : 02 00 FE FF FC FF 01 00  03 00 FE FF FC FF 01 00   ................
0800 : 03 00 FE FF FC FF 01 00  03 00 FE FF FC FF 01 00   ................
0810 : 03 00 FE FF FD FF 01 00  01 00 FE FF FF FF 01 00   ................
0820 : 00 00 FE FF 01 00 01 00  FE FF FE FF 02 00 01 00   ................
0830 : FC FF FE FF 03 00 01 00  FC FF FE FF 03 00 01 00   ................
0840 : FC FF FE FF 03 00 01 00  FC FF FE FF 03 00 01 00   ................
0850 : FC FF FE FF 03 00 01 00  FC FF FE FF 03 00 01 00   ................
0860 : FD FF FE FF 01 00 01 00  FF FF FE FF 00 00 01 00   ................
0870 : 01 00 FE FF FE FF 01 00  02 00 FE FF FC FF 01 00   ................
0880 : 03 00 FE FF FC FF 01 00  03 00 FE FF FC FF 01 00   ................
0890 : 03 00 FE FF FC FF 01 00  03 00 FE FF FC FF 01 00   ................
08A0 : 03 00 FE FF FC FF 01 00  03 00 FE FF FC FF 01 00   ................
08B0 : 03 00 FE FF FC FF 01 00  03 00 FE FF FC FF 01 00   ................
08C0 : 03 00 FE FF FC FF 01 00  03 00 FE FF FD FF 01 00   ................
08D0 : 01 00 FE FF FF FF 01 00  00 00 FE FF 01 00 01 00   ................
08E0 : FE FF FE FF 02 00 01 00  FD FF FE FF 02 00 01 00   ................
08F0 : FE FF FE FF 01 00 01 00  00 00 FE FF FF FF 01 00   ................
0900 : 01 00 FE FF FD FF 01 00  03 00 FE FF FC FF 01 00   ................
0910 : 03 00 FE FF FC FF 01 00  03 00 FE FF FC FF 01 00   ................
0920 : 03 00 FE FF FC FF 01 00  03 00 FE FF FC FF 01 00   ................

And this is the start of track 4:

0000 : 00 FF FF FF FF FF FF FF  FF FF FF 00 00 02 00 02   ................
0010 : 03 00 FE FF FC FF 01 00  03 00 FE FF FC FF 01 00   ................
0020 : 03 00 FE FF FC FF 01 00  03 00 FE FF FC FF 01 00   ................
0030 : 03 00 FE FF FD FF 01 00  01 00 FE FF FF FF 01 00   ................
0040 : 00 00 FE FF 01 00 01 00  FE FF FE FF 02 00 01 00   ................
0050 : FD FF FE FF 02 00 01 00  FE FF FE FF 01 00 01 00   ................
0060 : 00 00 FE FF FF FF 01 00  01 00 FE FF FD FF 01 00   ................
0070 : 03 00 FE FF FC FF 01 00  03 00 FE FF FC FF 01 00   ................
0080 : 03 00 FE FF FC FF 01 00  03 00 FE FF FD FF 01 00   ................
0090 : 01 00 FE FF FF FF 01 00  00 00 FE FF 01 00 01 00   ................
00A0 : FE FF FE FF 02 00 01 00  FC FF FE FF 03 00 01 00   ................
00B0 : FC FF FE FF 03 00 01 00  FC FF FE FF 03 00 01 00   ................
00C0 : FC FF FE FF 03 00 01 00  FC FF FE FF 03 00 01 00   ................
00D0 : FC FF FE FF 03 00 01 00  FC FF FE FF 03 00 01 00   ................
00E0 : FC FF FE FF 03 00 01 00  FC FF FE FF 03 00 01 00   ................
00F0 : FC FF FE FF 03 00 01 00  FC FF FE FF 03 00 01 00   ................
0100 : FC FF FE FF 03 00 01 00  FD FF FE FF 01 00 01 00   ................
0110 : FF FF FE FF 00 00 01 00  01 00 FE FF FE FF 01 00   ................
0120 : 02 00 FE FF FC FF 01 00  03 00 FE FF FC FF 01 00   ................
0130 : 03 00 FE FF FC FF 01 00  03 00 FE FF FC FF 01 00   ................
0140 : 03 00 FE FF FC FF 01 00  03 00 FE FF FC FF 01 00   ................
0150 : 03 00 FE FF FD FF 01 00  01 00 FE FF FF FF 01 00   ................
0160 : 00 00 FE FF 01 00 01 00  FE FF FE FF 02 00 01 00   ................
0170 : FD FF FE FF 02 00 01 00  FD FF FE FF 02 00 01 00   ................
0180 : FD FF FE FF 02 00 01 00  FD FF FE FF 02 00 01 00   ................
0190 : FD FF FE FF 02 00 01 00  FD FF FE FF 02 00 01 00   ................
01A0 : FD FF FE FF 02 00 01 00  FD FF FE FF 02 00 01 00   ................
01B0 : FD FF FE FF 02 00 01 00  00 00 00 00 00 00 00 00   ................
01C0 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
01D0 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
01E0 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
01F0 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
0200 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
0210 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
0220 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
0230 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
0240 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
0250 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
0260 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
0270 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
0280 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
0290 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
02A0 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
02B0 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
02C0 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
02D0 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
02E0 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
02F0 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................

As far as I know, if the offset is corrected the pregaps should be empty, so I think I'm doing something wrong, but I don't know what.

Can someone help me with this?

2 Reply by F1ReB4LL 2009-02-11 23:07:03

F1ReB4LL
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Registered: 2006-12-24
Posts: 3,847

r09 wrote:

As far as I know, if the offset is corrected the pregaps should be empty, so I think I'm doing something wrong, but I don't know what.
Can someone help me with this?

Nope, it's a usual thing with 0-write-offset CDs, so everything is correct.

3 Reply by r09 2009-02-11 23:18:58

r09
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From: Spain
Registered: 2008-04-19
Posts: 316

Ah, didn't know that. It's still strange that the tracks don't match the US version (except for the size), but if this is normal I'll submit the dump info.

4 Reply by Jackal 2009-02-11 23:28:08

Jackal
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Registered: 2006-12-23
Posts: 4,132

IBM games usually have differences in data and audio between versions, so everything's correct.

I need a little help dumping Descent 2 (PC)

Posts: 4

1 Topic by r09 2009-02-11 21:33:11

2 Reply by F1ReB4LL 2009-02-11 23:07:03

3 Reply by r09 2009-02-11 23:18:58

4 Reply by Jackal 2009-02-11 23:28:08

Posts: 4