NP3900 does not display cover art
I use the NP3900 to stream music from my NAS using twonky (I use the NP2900 profile, as twonky does not have one for the NP3900 yet). Some of my albums have the album art as mp3 tags and some have them as folder.jpg. NP3900 does only display the tagged covers, not the folder.jpg files. The cover art is displayed correctly at the moment with exactly the same setup on my NP2900.
This is the NP2900 profile from clients.db, which I use:
NA:Philips Streamium NP2900
DD:Philips Streamium HiFi Player
Problem is the profile, I switched it to "Windows 7" and now it does display cover art (very low resolution). After some more trying out profiles, it seems that cover art is only shown, when I choose a profile that does not use the XM:AASCALE#* line. But that line is essential, because if it is not used all folder.jpgs are scaled to something close to 100x100.