500//
A Downloadable LQ500 printer font.%

510/*/
A Stracker Tune. The final version./
These files can be imported and exported to/
a range of machines as Stracker is a/
machine independent music system.%

54F/*/
A Delta Film. This is to do with the Delta/
Animator, which appeared on one of the/
Archimedes World discs. It was later/
updated to allow sound to be tied in.%

553/*/
A Draw+ Library. Draw plus is a PD program/
based on Acorn's Draw (but much better)./
A set of related objects collected into one/
file. Not supported by Acorn's Draw2.%

555//
A DiskBase file. DiskBase sounds to me like/
a Disc cataloguer, but I could be wrong.%

5C0//
A file of some sort for Michael Gasbers's/
Sculptor.%

5C1//
A file of some sort for Michael Gasbers's/
Sculptor.%

5C2//
A file of some sort for Michael Gasbers's/
Sculptor.%

5C4//
A file of some sort for Micheal Gasbers's/
Sculptor.%

5F4/*/
Spark Script or file from Martin Wuerthner's/
Fractal app. A Spark Script is the same thing/
as an Obey file, only the commands are sent/
direct to Spark instead of being OBEYed.%

5FF/*/
An On Hand File. On Hand appeared on an/
Archimedes World cover disc and is a method/
of hard disc management.% 