.DSK File

The dsk file extension is used for a disk image format.

The "disk image" is typically a file containing every data byte on a diskette, i.e. Catalog tracks, files, DOS (if present) etc. One kind of disk image, NIB, tries to preserve all disk information (e.g. sector headers, sync bytes, etc.).

Apple II emulators running on a PC, Mac, etc. treat disk image files like diskettes. Disk image files are also a handy way to archive Apple II disks on hard disk and to maintain wares on ftp and other download sites.

These dsk (usually .dsk) files are disk image files used by popular Apple II emulators like AppleWin to run A2 wares on the PC or Mac.

How to open:

Use ISOBuster or similar programs to handle the *.dsk files.

How to convert:

Several disk image handling utilities can probably convert *.dsk files.