Disc format
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Revision as of 02:47, 5 October 2006 by ChaRleyTroniC (Talk | contribs) (→Third-party CPC disc formats)
CPCs could read discs formatted in three separate ways. Several high-capacity disc operating systems existed to add new formats to the three standard ones.
Standard CPC disc formats
- Data: 180k single-sided. 40 tracks of nine 512-byte sectors each. Sectors numbered &C1 to &C9. 64 directory entries. Can also be read by PCWs. The useable capacity is 178k.
- System: 180k single-sided. 40 tracks of nine 512-byte sectors each. Sectors numbered &41 to &49. 64 directory entries. Two reserved tracks containing CP/M BIOS. The useable capacity is 169k.
- IBM: 160k single-sided. 40 tracks of eight 512-byte sectors each. Sectors numbered &01 to &08. Provided for compatibility with CP/M-86 (?). The useable capacity is 158k.
- Vendor: Term used for System format discs with no software in the reserved tracks. The useable capacity is 169k.
Third-party CPC disc formats
- FAT formats (invented by MS-DOS; supported by SymbOS, DOS Copy, ReadDSK, SymDOS, DSK-CPC)
- MS800 formats
- Prem format (supported by Stream2)
- RODOS formats
- ROMDOS formats (also supported by ParaDOS: D80 supported by S-DOS and 400K/S)
- Ultraform
- Xexor formats (also supported by ParaDOS)
- XD-DOS etc.??
