ok, let's sum up what i've found :
*/ there was a tiny memory leak at file opening, now solved with v0.4
*/ the fact is that you don't have to open a file each time you want to pause/resume recording, you should use start and stop methods.
*/ a file that is not closed is perfectly readable but doesn't have its tag set.
*/ a close method could be added one day ( when i'll have some spare time )
cheers,
sevy/yves