is there a program LIKE encspot (recognizing the used codec), able to scan the collection and point out which albums seem to insist on files from different releases (scanning and analyzing per-album (common folder, album name [tag]) results) ?
it seems that there is not (?)..., imo it would be great idea, doesn't it (am i genius ? ) ?

What do you think about MrQuestionMan ?

i know MrQuestionMan, it is not able to do that.

You might write a perl script that uses the output of the encspot's commandline version to detect albums that were generated with different encoders

seems that sooner or later i will have to think about it. i will write something down when i finish my current project...if someone else will not pop-up in meantime