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An early [[Image:Datamedia disc solution for the CPC 464system.jpg|thumb|250px|Professional storage media]]

Manufactured by An early disc solution for the German CPC 464 from german company [[Data Media]]. Available in three versions with two, three, or four 5.25" drives. The capacity per disc is 780Kbytes, the four drive version was announced to store up to 3.2Mb of data. Due to the price and AMSDOS-incompatibility this system lost to another german third-party company of disc systems for the CPC, [[Vortex Computersysteme]].

The disc operating system was called FDOS (non-AMSDOS compatible) and was stored on the controler controller board in an 8Kb eprom. Data Media also delivered patches that made the drives availiable Unlike as under [[CP/M]]AMSDOS, the cassette commands are hooked (ie. LOAD does access the normal cassette routines). Instead, the disc is accessed via RSX commands (according to the review: |LOAD "filename" - though that info appears to be incorrect - correct should be |LOAD,a$ with comma, and for 464 BASIC: with string variable).The supported RSX commands are:

This controler was unlike all later |MON Monitor/Debugger |CPM Start CP/M (or other boot-able disc controlers for the CPC based on the WD2797 chipset.) |A,|B,|C,|D Select drive A-D |LOAD Load File |SAVE Save File |DIR Show Directory |ERA Erase File |REN Rename File |OPENIN Open Input File |OPENOUT Open Output File |CLOSE Close Input/Output File |READ Read from Input File |WRITE Write to Input File |RUN Load and Start File |MERGE Load and Merge File |INIT Format Disc