3.7.0

3.7.0 (2026-09-09)

Split archive volume sets now convert end to end

• Extract split 7-Zip and ZIP sets in-app (.7z.001/.zip.001 style): what used to be skipped with "extract the set manually" is now extracted with the bundled 7za.exe and converted like any other input. The whole set is located from the first volume, disk space is checked against the total size of all volumes, and the extracted image is classified (cue/gdi/toc convert directly, bare images get the same recovery path as joined sets). Multi-part RAR still needs manual extraction, since the app does not carry RAR tooling.
• Split-set skip notices (missing volume, no convertible image inside, missing 7za) are user-data conditions and are excluded from automatic bug reports.

Output folder convenience and resilience

• Output folder auto-fill: selecting a source folder (browse or command line) now sets the Output CHD destination to the same folder when the output path is still empty. This is safe by construction — outputs are staged <name>.chdtmp and moved into place only on success, and existing CHDs are never inputs.
• Disconnected output drive detected up front: a batch whose output folder sits on an unplugged USB stick or a dropped network drive now probes the folder once and reports a single actionable message, instead of failing every file with a confusing path error mid-batch.
• Temp-folder cleanup is best effort: staged files carrying the read-only attribute (or locked by antivirus) no longer abort the batch or get reported as app bugs — attributes are cleared before deleting, directory read-only flags included, and a leftover temp folder is only logged as a warning.

PBP extraction — PBPSharp 1.1.0

The bundled PBP library was aligned with all four reference implementations (popstation, PSX2PSP, iPoPS, pop-fe), so PBP files that earlier versions rejected now extract:

• pop-fe multi-disc PBPs no longer rejected: pop-fe leaves the four "template" DWORDs of the PSTITLEIMG000000 header zero (popstation/PSX2PSP write fixed magic values there). The header values are no longer validated — the disc position table, which is what actually locates the discs, is honoured regardless.
• PARAM.SFO is no longer required: a missing or corrupt SFO leaves title/disc-id metadata empty instead of rejecting the whole file. None of the reference tools read the SFO when extracting disc images.
• zlib-wrapped PSAR blocks decompress: blocks authored with zlib.compress (2-byte header + Adler-32) instead of raw deflate are retried as zlib streams after the raw inflate fails.
• pop-fe index layout supported: the official 16-bit index entry (size uint16 at bytes 4–5, stored-flag byte at 6, SHA-1 at 8–23) is read directly; tools that write the size as a 32-bit int (popstation/PSX2PSP/iPoPS) are still covered because bytes 6–7 stay zero there.
• Stored/uncompressed blocks flagged in the index (pop-fe --compression 0) are copied verbatim instead of being inflated.
• Incompressible blocks accepted: index entries a few bytes larger than the raw 16-sector block (deflate framing on incompressible data) are no longer rejected.
• 64-bit offset math for block reads, so multi-gigabyte files cannot overflow the 32-bit offset computation.
• Hardened against corrupt indexes: an entry claiming to be a stored block larger than a full block is reported as corrupt data instead of overrunning the read buffer, and the split-set disk-space check now uses the whole volume set rather than the first volume alone.

Bug-report filtering additions

• chdman crashes during the startup probe (entry-point-not-found / illegal-instruction exit codes — an installation incompatibility, not app logic) are excluded.
• "Output folder is not available" notices (unplugged drive) are excluded.

Housekeeping

• Version bumps: application 3.7.0, PBPSharp 1.1.0.
• Library updates: Meziantou.Analyzer 3.0.231, Microsoft.NET.Test.Sdk 18.10.0.
• Test suite grew to 835 tests (split-volume-set extraction, PBP index/deflate variants, pop-fe multi-disc, SFO tolerance, bug-report exclusions).

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Contributors

Thanks to everyone who contributed to this release:

• @drpetersonfernandes (Peterson Fernandes) — split 7z/zip volume-set extraction, PBPSharp 1.1.0 (pop-fe compatibility, zlib-wrapped and stored PSAR blocks, hardened block reader), resilient temp cleanup, output-folder availability probe, bug-report filtering, documentation.
• @catchem88 (Adrian Liunardo) — automatic Output CHD destination fill when selecting a source folder (#10).