When playing a track in the car it would be really useful if I could mark the
current and/or the last track. Sometimes I find that a track was corrupt, or
had the end cut off or I just plain don't like it! When I get back home I
could download the marks into my PC and either re-rip the track or delete it
or whatever.

Ideally there should be the ability to Mark current/last [0-9] where 0-9
is the mark reason, i.e. 0=corrupt, 1=short, 2=dontlikeit, ...

Paul