Already redumped.
I've read some posts on 2ch, and found a method to find bad dumps without redumping.
In most case, DAX dumps are good. this will save us from huge redumping.
1. Open ISO with UMDGen, and check the layout of ISO.
2. Extract the last file in the ISO.
3. Check the last file in hex editor. If the last part of the last file is strangely zeroed, it's possible to be a bad dump.
The problem is that DAX dumper can't dump the last 2k or 6k, and some UMD has significant data there.
So, all you need to check is the last file.
And, it's confirmed by many people, hand-fixed isos (dump the last file with irshell or pspfiler, and fix missing data by hands) match pspfiler dumps.
So... I know some people don't like pspfiler because of [s]its slow dumping speed, no compatibility with older CFW and FW1.5[/s] or no support dumping via wifi/usb.
For such a people, DAX dumper is useful.
You can even use USBSSS, you just need to add 00s, as i wrote in No-intro.
You can fix the last files of the dax dump by hand.
It's not difficult, you just add the missing data in hex editor. (Need to be careful with the iso size)
Example of a bad dump in database, SMALLPAD.DAT of Grand Theft Auto - Vice City Stories (U) [ULUS-10160].
...
0A5C6740 : 4A 45 52 70 69 4A 54 41 61 6E 50 75 67 68 41 55 JERpiJTAanPughAU
0A5C6750 : 62 65 61 41 43 45 43 41 6E 4A 71 64 64 65 6A 41 beaACECAnJqddejA
0A5C6760 : 57 53 4B 71 54 6D 75 57 6E 4F 4E 79 72 7A 6D 48 WSKqTmuWnONyrzmH
0A5C6770 : 79 54 77 47 58 77 73 66 63 71 63 7A 74 51 78 56 yTwGXwsfcqcztQxV
0A5C6780 : 65 6F 78 6E 78 6B 62 4F 4B 64 6D 4F 51 65 6A 4F eoxnxkbOKdmOQejO
0A5C6790 : 77 4A 45 6B 49 43 43 41 41 45 6F 43 6B 56 44 78 wJEkICCAAEoCkVDx
0A5C67A0 : 71 52 75 63 63 59 6A 6F 53 48 57 55 6A 44 6F 58 qRuccYjoSHWUjDoX
0A5C67B0 : 68 6F 63 4A 6D 6D 6E 42 4C 58 4E 53 57 7A 45 50 hocJmmnBLXNSWzEP
0A5C67C0 : 41 50 78 59 4B 67 4C 78 7A 70 73 62 46 49 71 57 APxYKgLxzpsbFIqW
0A5C67D0 : 71 71 75 57 53 54 6C 64 45 53 71 65 6C 72 72 73 qquWSTldESqelrrs
0A5C67E0 : 63 68 74 75 66 71 6E 61 43 45 6A 57 55 6C 57 63 chtufqnaCEjWUlWc
0A5C67F0 : 47 51 43 47 65 48 57 47 44 74 75 52 51 47 6D 69 GQCGeHWGDtuRQGmi
0A5C6800 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0A5C6810 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0A5C6820 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0A5C6830 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0A5C6840 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0A5C6850 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0A5C6860 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0A5C6870 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0A5C6880 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0A5C6890 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
...
Mr Driller pwns