I need a little help dumping Descent 2 (PC)

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?

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.

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.

Jackal · 2009-02-11 23:28:08

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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