Since last firmware, PSrMS started acting strangely.
Basically, 4 of 5 times it transcodes divx while copying. It doesn't seem to be a logic why some are transcoded and some are not. The only thing I can say is that I've only tried copying files with incorporated subtitles (using AVIaddxSubs). For some of them, it was enough to rename them as .mpg but after a while it seemed like PS3MS "noticed" the trick and now it's not working anymore.
Thank you for your support!!!