MiSTer Companion v8.6.2
CHD conversion
- Added Optimize CD CHDs for MiSTer, enabled by default, to help address reported CHD slowdowns following recent MiSTer Linux updates.
- Uses Zstandard/FLAC compression with a 9792-byte hunk size (
-c cdzs,cdfl -hs 9792). - The setting is saved and shared between CHD Converter and Disc to Image → CHD. DVD/ISO conversion is unchanged.
Arcade ROM Checker
- Added Copy filtered filenames and Export filtered list…, respecting both the status filter and filename/MRA search.
- Export only missing ROMs by selecting Missing. Existing full-list actions remain available.
- Made the background behind the checker’s controls transparent for a consistent appearance.