A possible reply,

The 6K, as I'm looking at it, can save a maximum of 10 songs per file set. Multiply that by 20 sets and it makes 200. The only problem seems to be that if you send the files to a person with a different model it might not work.

Maybe, just maybe, those now redundant people at Technics didn't quite work that one out. For instance, Luce can send me a file set played on her 7K but I can't play it.

I wish you well, but remember your limitations.

Yours,

Mark