Jig, someone else (I believe) mentioned that videos with AMR-coded video caused a problem on some players (I don't remember all the permutations). I believe AMR is not often used as an audio format. It's meant for speech and is low quality. It's associated with certain cellphone video as part of the 3GPP standard. I would guess that similar content to the video Gambolio wants is available with a better audio component. Gambolio, I'd recommend searching BH for 'AMR.' Also, if you'd like, post the specific YouTube video you are interested in. I'll see if it works on my Kinoma 4EX installation.