Thank you for your reply, deadlegion!

I have looked at WinVICE Wiki and unfortunately could not find the right answers / informations.

But for my 2nd question I could find the following link:

https://ist.uwaterloo.ca/~schepers/formats.html

The "suffix-point" is now clear. But this is not clear: My games list is structured so that all files are currently in one directory (named C64). There are currently 794 files and therefore all games in one directory. I don't know-for example at Bouldi Dash 1-10-whether all files belong to a game or whether there are different releases of Bouldi Dash.

Questions 1 and 3 are still open and I will try to find the needed informations...if anyone can help, it would be great!

In addition I would like to say that I use the emulators on a RaspPi3.

regs
Pressies