dumpsxiso

dumpsxiso reads a disc image back. With no --output it lists what the image holds, which is the quickest way to see whether a file landed under the name a program will ask for:

$ dumpsxiso game.bin
volume MYGAME, 789 blocks
  system      PLAYSTATION
  created     2026-10-14T00:00:00Z
  extension   CD-XA

  \MAIN.EXE;1                              1251328 bytes  LBA 23
  \MUSIC.XA;1                                 9344 bytes  LBA 72  raw sectors
  \SYSTEM.CNF;1                                 53 bytes  LBA 634
  \DATA                                      <dir>        LBA 21
  \DATA\SOUND\SAMPLE1.SEQ;1                   5000 bytes  LBA 636

With --output the tree is extracted to a directory, and what comes out can be handed straight back to mkdisc. A .bin of raw sectors and a .iso of 2048-byte blocks are both accepted; which one it is follows from the image itself. Streamed files come out as the 2336-byte sectors they went in as, recognised by their CD-XA attributes rather than their names.

Reading a raw image checks every sector's error detection, so a damaged image is reported rather than quietly extracted. A sector of a filesystem is the kind that is meant to be read correctly or not at all, and a file recovered from a failing one is a file the console itself would refuse.

Origins#

dumpsxiso is a translation into Go of the dumpsxiso in Lameguy64's mkpsxiso, which is under the GPL-2.0, and so is the translation: it is in tools/dumpsxiso under that license, with its own notice, and nothing else in the repository uses it. It reads images through the format packages, which are independent and under the MIT license.