[Coco] Copying a data/binary file from disk to cassette

[Torsten Dittel]

Some copy protected tape games (those sold under the "Microdeal" label 
mainly in Europe) CLOADMed an ASCII titlescreen (ORGed to &H400), an 
alternative tape loader (replacing the BASIC ROM routines), then 
overloaded the BASIC error handler RAM hooks to jump to that loader in 
case of an BASIC error and produced an I/O error by some irregular 
"noise" on tape. After that the actual loading of the game started.