Mega-CD / Sega Saturn dumping

[gigadeath]

Below is sector 80951. CDRWin reports that the LBA sector that should end track01 is 81099

81099 - 150 = 80949

sectors 80949 and 80950 are full of data. As you can see the first sector with zeros is 80951 (below)

I count 2092 bytes of data, so I did 2352 + 2352 + 2092 = 6796 bytes / 4 = 1699 samples



0000 : E8 6E CE AC 54 7D FF 61  80 28 60 1E A8 08 7E 86   .n..T}.a.(`...~.
0010 : A0 62 F8 29 82 9E E1 A8  48 7E B6 A0 76 F8 26 C2   .b.)....H~..v.&.
0020 : 9A D1 AB 1C 7F 49 E0 36  C8 16 D6 8E DE E4 58 4B   .....I.6......XK
0030 : 7A B7 63 36 A9 D6 FE DE  C0 58 50 3A BC 13 31 CD   z.c6.....XP:..1.
0040 : D4 55 9F 7F 28 20 1E 98  08 6A 86 AF 22 FC 19 81   .U..( ...j.."...
0050 : CA E0 57 08 3E 86 90 62  EC 29 8D DE E5 98 4B 2A   ..W.>..b.)....K*
0060 : B7 5F 36 B8 16 F2 8E C5  A4 53 3B 7D D3 61 9D E8   ._6......S;}.a..
0070 : 69 8E AE E4 7C 4B 61 F7  68 46 AE B2 FC 75 81 E7   i...|Ka.hF...u..
0080 : 20 4A 98 37 2A 96 9F 2E  E8 1C 4E 89 F4 66 C7 6A    J.7*.....N..f.j
0090 : D2 AF 1D BC 09 B1 C6 F4  52 C7 7D 92 A1 AD B8 7D   ........R.}....}
00A0 : B2 A1 B5 B8 77 32 A6 95  BA EF 33 0C 15 C5 CF 13   ....w2....3.....
00B0 : 14 0D CF 45 94 33 2F 55  DC 3F 19 D0 0A DC 07 19   ...E.3/U.?......
00C0 : C2 8A D1 A7 1C 7A 89 E3  26 C9 DA D6 DB 1E DB 48   .....z..&......H
00D0 : 5B 76 BB 66 F3 6A C5 EF  13 0C 0D C5 C5 93 13 2D   [v.f.j.........-
00E0 : CD DD 95 99 AF 2A FC 1F  01 C8 00 56 80 3E E0 10   .....*.....V.>..
00F0 : 48 0C 36 85 D6 E3 1E C9  C8 56 D6 BE DE F0 58 44   H.6......V....XD
0100 : 3A B3 53 35 FD D7 01 9E  80 68 60 2E A8 1C 7E 89   :.S5.....h`...~.
0110 : E0 66 C8 2A D6 9F 1E E8  08 4E 86 B4 62 F7 69 86   .f.*.....N..b.i.
0120 : AE E2 FC 49 81 F6 E0 46  C8 32 D6 95 9E EF 28 4C   ...I...F.2....(L
0130 : 1E B5 C8 77 16 A6 8E FA  E4 43 0B 71 C7 64 52 AB   ...w.....C.q.dR.
0140 : 7D BF 61 B0 28 74 1E A7  48 7A B6 A3 36 F9 D6 C2   }.a.(t..Hz..6...
0150 : DE D1 98 5C 6A B9 EF 32  CC 15 95 CF 2F 14 1C 0F   ...\j..2..../...
0160 : 49 C4 36 D3 56 DD FE D9  80 5A E0 3B 08 13 46 8D   I.6.V....Z.;..F.
0170 : F2 E5 85 8B 23 27 59 DA  BA DB 33 1B 55 CB 7F 17   ....#'Y...3.U...
0180 : 60 0E A8 04 7E 83 60 61  E8 28 4E 9E B4 68 77 6E   `...~.`a.(N..hwn
0190 : A6 AC 7A FD E3 01 89 C0  66 D0 2A DC 1F 19 C8 0A   ..z.....f.*.....
01A0 : D6 87 1E E2 88 49 A6 B6  FA F6 C3 06 D1 C2 DC 51   .....I.........Q
01B0 : 99 FC 6A C1 EF 10 4C 0C  35 C5 D7 13 1E 8D C8 65   ..j...L.5......e
01C0 : 96 AB 2E FF 5C 40 39 F0  12 C4 0D 93 45 AD F3 3D   ....\@9.....E..=
01D0 : 85 D1 A3 1C 79 C9 E2 D6  C9 9E D6 E8 5E CE B8 54   ....y.......^..T
01E0 : 72 BF 65 B0 2B 34 1F 57  48 3E B6 90 76 EC 26 CD   r.e.+4.WH>..v.&.
01F0 : DA D5 9B 1F 2B 48 1F 76  88 26 E6 9A CA EB 17 0F   ....+H.v.&......
0200 : 4E 84 34 63 57 69 FE AE  C0 7C 50 21 FC 18 41 CA   N.4cWi...|P!..A.
0210 : B0 57 34 3E 97 50 6E BC  2C 71 DD E4 59 8B 7A E7   .W4>.Pn.,q..Y.z.
0220 : 63 0A A9 C7 3E D2 90 5D  AC 39 BD D2 F1 9D 84 69   c...>..].9.....i
0230 : A3 6E F9 EC 42 CD F1 95  84 6F 23 6C 19 ED CA CD   .n..B....o#l....
0240 : 97 15 AE 8F 3C 64 11 EB  4C 4F 75 F4 27 07 5A 82   ....<d..LOu.'.Z.
0250 : BB 21 B3 58 75 FA A7 03  3A 81 D3 20 5D D8 39 9A   .!.Xu...:.. ].9.
0260 : 92 EB 2D 8F 5D A4 39 BB  52 F3 7D 85 E1 A3 08 79   ..-.].9.R.}....y
0270 : C6 A2 D2 F9 9D 82 E9 A1  8E F8 64 42 AB 71 BF 64   ..........dB.q.d
0280 : 70 2B 64 1F 6B 48 2F 76  9C 26 E9 DA CE DB 14 5B   p+d.kH/v.&.....[
0290 : 4F 7B 74 23 67 59 EA BA  CF 33 14 15 CF 4F 14 34   O{t#gY...3...O.4
02A0 : 0F 57 44 3E B3 50 75 FC  27 01 DA 80 5B 20 3B 58   .WD>.Pu.'...[ ;X
02B0 : 13 7A 8D E3 25 89 DB 26  DB 5A DB 7B 1B 63 4B 69   .z..%..&.Z.{.cKi
02C0 : F7 6E C6 AC 52 FD FD 81  81 A0 60 78 28 22 9E 99   .n..R.....`x("..
02D0 : A8 6A FE AF 00 7C 00 21  C0 18 50 0A BC 07 31 C2   .j...|.!..P...1.
02E0 : 94 51 AF 7C 7C 21 E1 D8  48 5A B6 BB 36 F3 56 C5   .Q.||!..HZ..6.V.
02F0 : FE D3 00 5D C0 39 90 12  EC 0D 8D C5 A5 93 3B 2D   ...].9........;-
0300 : D3 5D 9D F9 A9 82 FE E1  80 48 60 36 A8 16 FE 8E   .].......H`6....
0310 : C0 64 50 2B 7C 1F 61 C8  28 56 9E BE E8 70 4E A4   .dP+|.a.(V...pN.
0320 : 34 7B 57 63 7E A9 E0 7E  C8 20 56 98 3E EA 90 4F   4{Wc~..~. V.>..O
0330 : 2C 34 1D D7 49 9E B6 E8  76 CE A6 D4 7A DF 63 18   ,4..I...v...z.c.
0340 : 29 CA 9E D7 28 5E 9E B8  68 72 AE A5 BC 7B 31 E3   )...(^..hr...{1.
0350 : 54 49 FF 76 C0 26 D0 1A  DC 0B 19 C7 4A D2 B7 1D   TI.v.&......J...
0360 : B6 89 B6 E6 F6 CA C6 D7  12 DE 8D 98 65 AA AB 3F   ............e..?
0370 : 3F 50 10 3C 0C 11 C5 CC  53 15 FD CF 01 94 00 6F   ?P.<....S......o
0380 : 40 2C 30 1D D4 09 9F 46  E8 32 CE 95 94 6F 2F 6C   @,0....F.2...o/l
0390 : 1C 2D C9 DD 96 D9 AE DA  FC 5B 01 FB 40 43 70 31   .-.......[..@Cp1
03A0 : E4 14 4B 4F 77 74 26 A7  5A FA BB 03 33 41 D5 F0   ..KOwt&.Z...3A..
03B0 : 5F 04 38 03 52 81 FD A0  41 B8 30 72 94 25 AF 5B   _.8.R...A.0r.%.[
03C0 : 3C 3B 51 D3 7C 5D E1 F9  88 42 E6 B1 8A F4 67 07   <;Q.|]...B....g.
03D0 : 6A 82 AF 21 BC 18 71 CA  A4 57 3B 7E 93 60 6D E8   j..!..q..W;~.`m.
03E0 : 2D 8E 9D A4 69 BB 6E F3  6C 45 ED F3 0D 85 C5 A3   -...i.n.lE......
03F0 : 13 39 CD D2 D5 9D 9F 29  A8 1E FE 88 40 66 B0 2A   .9.....)....@f.*
0400 : F4 1F 07 48 02 B6 81 B6  E0 76 C8 26 D6 9A DE EB   ...H.....v.&....
0410 : 18 4F 4A B4 37 37 56 96  BE EE F0 4C 44 35 F3 57   .OJ.77V....LD5.W
0420 : 05 FE 83 00 61 C0 28 50  1E BC 08 71 C6 A4 52 FB   ....a.(P...q..R.
0430 : 7D 83 61 A1 E8 78 4E A2  B4 79 B7 62 F6 A9 86 FE   }.a..xN..y.b....
0440 : E2 C0 49 90 36 EC 16 CD  CE D5 94 5F 2F 78 1C 22   ..I.6......_/x."
0450 : 89 D9 A6 DA FA DB 03 1B  41 CB 70 57 64 3E AB 50   ........A.pWd>.P
0460 : 7F 7C 20 21 D8 18 5A 8A  BB 27 33 5A 95 FB 2F 03   .| !..Z..'3Z../.
0470 : 5C 01 F9 C0 42 D0 31 9C  14 69 CF 6E D4 2C 5F 5D   \...B.1..i.n.,_]
0480 : F8 39 82 92 E1 AD 88 7D  A6 A1 BA F8 73 02 A5 C1   .9.....}....s...
0490 : BB 10 73 4C 25 F5 DB 07  1B 42 8B 71 A7 64 7A AB   ..sL%....B.q.dz.
04A0 : 63 3F 69 D0 2E DC 1C 59  C9 FA D6 C3 1E D1 C8 5C   c?i....Y.......\
04B0 : 56 B9 FE F2 C0 45 90 33  2C 15 DD CF 19 94 0A EF   V....E.3,.......
04C0 : 47 0C 32 85 D5 A3 1F 39  C8 12 D6 8D 9E E5 A8 4B   G.2....9.......K
04D0 : 3E B7 50 76 BC 26 F1 DA  C4 5B 13 7B 4D E3 75 89   >.Pv.&...[.{M.u.
04E0 : E7 26 CA 9A D7 2B 1E 9F  48 68 36 AE 96 FC 6E C1   .&...+..Hh6...n.
04F0 : EC 50 4D FC 35 81 D7 20  5E 98 38 6A 92 AF 2D BC   .PM.5.. ^.8j..-.
0500 : 1D B1 C9 B4 56 F7 7E C6  A0 52 F8 3D 82 91 A1 AC   ....V.~..R.=....
0510 : 78 7D E2 A1 89 B8 66 F2  AA C5 BF 13 30 0D D4 05   x}....f.....0...
0520 : 9F 43 28 31 DE 94 58 6F  7A AC 23 3D D9 D1 9A DC   .C(1..Xoz.#=....
0530 : 6B 19 EF 4A CC 37 15 D6  8F 1E E4 08 4B 46 B7 72   k..J.7......KF.r
0540 : F6 A5 86 FB 22 C3 59 91  FA EC 43 0D F1 C5 84 53   ....".Y...C....S
0550 : 23 7D D9 E1 9A C8 6B 16  AF 4E FC 34 41 D7 70 5E   #}....k..N.4A.p^
0560 : A4 38 7B 52 A3 7D B9 E1  B2 C8 75 96 A7 2E FA 9C   .8{R.}....u.....
0570 : 43 29 F1 DE C4 58 53 7A  BD E3 31 89 D4 66 DF 6A   C)...XSz..1..f.j
0580 : D8 2F 1A 9C 0B 29 C7 5E  D2 B8 5D B2 B9 B5 B2 F7   ./...).^..].....
0590 : 35 86 97 22 EE 99 8C 6A  E5 EF 0B 0C 07 45 C2 B3   5.."...j.....E..
05A0 : 11 B5 CC 77 15 E6 8F 0A  E4 07 0B 42 87 71 A2 A4   ...w.......B.q..
05B0 : 79 BB 62 F3 69 85 EE E3  0C 49 C5 F6 D3 06 DD C2   y.b.i....I......
05C0 : D9 91 9A EC 6B 0D EF 45  8C 33 25 D5 DB 1F 1B 48   ....k..E.3%....H
05D0 : 0B 76 87 66 E2 AA C9 BF  16 F0 0E C4 04 53 43 7D   .v.f.........SC}
05E0 : F1 E1 84 48 63 76 A9 E6  FE CA C0 57 10 3E 8C 10   ...Hcv.....W.>..
05F0 : 65 CC 2B 15 DF 4F 18 34  0A 97 47 2E B2 9C 75 A9   e.+..O.4..G...u.
0600 : E7 3E CA 90 57 2C 3E 9D  D0 69 9C 2E E9 DC 4E D9   .>..W,>..i....N.
0610 : F4 5A C7 7B 12 A3 4D B9  F5 B2 C7 35 92 97 2D AE   .Z.{..M....5..-.
0620 : 9D BC 69 B1 EE F4 4C 47  75 F2 A7 05 BA 83 33 21   ..i...LGu.....3!
0630 : D5 D8 5F 1A B8 0B 32 87  55 A2 BF 39 B0 12 F4 0D   .._...2.U..9....
0640 : 87 45 A2 B3 39 B5 D2 F7  1D 86 89 A2 E6 F9 8A C2   .E..9...........
0650 : E7 11 8A 8C 67 25 EA 9B  0F 2B 44 1F 73 48 25 F6   ....g%...+D.sH%.
0660 : 9B 06 EB 42 CF 71 94 24  6F 5B 6C 3B 6D D3 6D 9D   ...B.q.$o[l;m.m.
0670 : ED A9 8D BE E5 B0 4B 34  37 57 56 BE BE F0 70 44   ......K47WV...pD
0680 : 24 33 5B 55 FB 7F 03 60  01 E8 00 4E 80 34 60 17   $3[U...`...N.4`.
0690 : 68 0E AE 84 7C 63 61 E9  E8 4E CE B4 54 77 7F 66   h...|ca..N..Tw.f
06A0 : A0 2A F8 1F 02 88 01 A6  80 7A E0 23 08 19 C6 8A   .*.......z.#....
06B0 : D2 E7 1D 8A 89 A7 26 FA  9A C3 2B 11 DF 4C 58 35   ......&...+..LX5
06C0 : FA 97 03 2E 81 DC 60 59  E8 3A CE 93 14 6D CF 6D   ......`Y.:...m.m
06D0 : 94 2D AF 5D BC 39 B1 D2  F4 5D 87 79 A2 A2 F9 B9   .-.].9...].y....
06E0 : 82 F2 E1 85 88 63 26 A9  DA FE DB 00 5B 40 3B 70   .....c&.....[@;p
06F0 : 13 64 0D EB 45 8F 73 24  25 DB 5B 1B 7B 4B 63 77   .d..E.s$%.[.{Kcw
0700 : 69 E6 AE CA FC 57 01 FE  80 40 60 30 D7 98 5E 77   i....W...@`0..^w
0710 : 48 64 36 AB 56 FF 7E C0  30 A5 D1 C9 0A 91 C7 2C   Hd6.V.~.0......,
0720 : 52 9D FD A9 81 BE E0 70  48 24 36 9B 56 EB 7E CF   R......pH$6.V.~.
0730 : 60 54 28 3F 5E 90 38 6C  12 AD CD BD 95 B1 AF 34   `T(?^.8l.......4
0740 : 7C 17 61 CE A8 54 7E BF  60 70 28 24 1E 9B 48 6B   |.a..T~.`p($..Hk
0750 : 76 AF 66 FC 2A C1 DF 10  58 0C 3A 85 D3 23 1D D9   v.f.*...X.:..#..
0760 : C9 9A CA 62 DE DA 48 54  36 BF 56 F0 3E C4 18 A7   ...b..HT6.V.>...
0770 : A6 C9 F5 D1 87 1C 62 89  E9 A6 CE FA D4 43 1F 71   ......b......C.q
0780 : C8 24 56 9B 7E EB 60 4F  68 34 2E 97 5C 6E B9 EC   .$V.~.`Oh4..\n..
0790 : 72 CD E5 95 8B 2F 27 5C  1A B9 CB 32 D7 55 9E BF   r..../'\...2.U..
07A0 : 28 70 1E A4 08 7B 46 A3  72 F9 E5 82 CB 21 97 58   (p...{F.r....!.X
07B0 : 6E BA AC 73 3D E5 D1 8B  FF 62 C9 07 B6 CF 36 D4   n..s=....b....6.
07C0 : 16 DF 4E D8 1F F4 97 7B  2E A3 5C 79 F9 E2 C2 C9   ..N....{..\y....
07D0 : 91 96 EC 6E CD EC 55 8D  FF 25 FB 17 2D 50 33 CE   ...n..U..%..-P3.
07E0 : 67 1C A3 21 B9 D8 72 DA  A5 9B 3B 2B 53 5F 7D F8   g..!..r...;+S_}.
07F0 : 21 82 0B 04 5F 2B 32 76  93 BF 78 0C 22 85 D9 A3   !..._+2v..x."...
0800 : 1A F9 CB 02 D7 41 9E B0  68 74 2E A7 5C 7A 82 17   .....A..ht..\z..
0810 : 00 0B 22 3B 21 B5 D8 1C  5A 89 FB 26 C3 5A D1 FB   ..";!...Z..&.Z..
0820 : 1C 43 49 F1 F6 C4 1C 43  7D 5F 83 24 00 00 00 00   .CI....C}_.$....
0830 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
0840 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
0850 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
0860 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
0870 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
0880 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
0890 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
08A0 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
08B0 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
08C0 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
08D0 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
08E0 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
08F0 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
0900 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
0910 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................
0920 : 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ................

[gigadeath]

Right Offset in EAC to correct copying is +1699.

I put +1723 in EAC. Should I count the -24 or not? Is the info on AccurateRip useless?


+6 is the offset of my drive with AccurateRip info
-30 is the correction I found in the guide
-24 is the resulting offset

+1699 is the disc offset right? So should I consider the disc offset only or the drive offset too?

Should I put +1699 or +1723?

[p_star]

The Correct offset for dumping whit EAC is 1700 !!!

The Write offset for DB guide is +1694 EAC / +1724 PR

[gigadeath]

sorry but were does these number come from?

Why 1700? What does mean +1694 EAC / +1724 PR?

[Jackal]

amount of scrambled data = 1699, so +1699 is what you use in EAC for this specific drive (your calculation was correct).

the factory write offset (offset added during manufacturing of that particular disc, only used for information purposes and not for dumping) should be 1699 -24 (+6-30) = +1675

I hope p_star can explain why he mentions +1700 instead of +1699?

also, nice to see no-intro working on cd-based media

[gigadeath]

I got most of the steps, and I dumped a couple discs, but I think it's best to wait posting info until someone else can confirm my result dumping any CD I posted above.

I find little problems all the time, I noticed that one of my drives (the one I made the screenshot above with) reports this gaps

2:00
2:00
1.74

etc. all 1.74 after that

while the other drive reports

2:00
1.74
1.74

etc. all 1.74 after that

This is with gap detection method A, the other methods report totally random gaps every time

[Jackal]

Gap detection with EAC can be a pain.. I don't know if Sega discs really have 1.74 gaps, but PSX discs certainly do not.

[p_star]

I hope p_star can explain why he mentions +1700 instead of +1699?

Oops ... Probably I was drunk.
Sorry... Correct EAC offset is +1699

I don't know if Sega discs really have 1.74 gaps, but PSX discs certainly do not.

It is feature only the Japanese disks for Saturn and Sega CD. Some disks have various gaps(http://forum.psxdb.com/viewtopic.php?id=1188). Someone have all gaps equal 1.74 sec. I think that it is a mistake at record, instead of the mistake in EAC.There are things  specifying that at record of disks mistakes were supposed. For example, in Enemy Zero for Saturn the audiotrack on first three disks was initially identical, but because of a mistake at record it began to differ. http://forum.psxdb.com/viewtopic.php?id=863.

Do not forget and about base Tosec. The Japanese games there everywhere have gaps equal 1.74. For example http://toseciso.org/details.php?id=3109
Certainly silly completely to trust this base, but always it is useful to compare the disks to their "dumps".

[p_star]

while the other drive reports

2:00
1.74
1.74

etc. all 1.74 after that

This is with gap detection method A, the other methods report totally random gaps every time

Your case pregap it is equal 2.00 sec, and gaps between audio tracks are equal 1.74.

[gigadeath]

Since I have a couple days of free time, would it be possible to get a beta copy of PerfectRip to test it with my discs? I already talked to Vigilante @ No-Intro site, but I can't use MSN, so I couldn't contact Ipse Dixit and talk to him about it.

Anyone have a copy of PerfectRip? It would be strictly for personal use of course, no distribution whatsoever. If not possible, can anyone contact Ipse Dixit for me and explain my case? Thanks