DiskManager64 is a command line utility to edit and manage D64, D71 and D81
Commodore disk images. However the latest is not well tested yet. There are also
options to convert from PETSCII (usually SEQ files) to ASCII and vice versa. From
prompt type "dm64 -h" and read the options. Some times, especially for delete or
extract operations, the white spaces and some others chars could create problems,
in these cases try to use wildcards (? or *) in their place. However avoid to use
special chars like "/", "\", "|", etc.... as well as white spaces in the file names.

If there are questions, please send me an email to: pasquale_frega@tiscali.it