Nokia Lumia :: Music From PC Playing Quietly On 920

last night a friend came around mine so i thought i would use have laptop whilst he had it with him to get some up to date music. i simply plugged my usb in and then dragged and dropped some of his music into the music file on the phone. all looked so simple to me. there were some messages that came up regarding some of the files not working but my friend said he got those messages when he transferred to his itunes also.

when i go to play these songs i can barely hear them at all but i can play Internet videos with volume fine, i can play things within the nokia music mix thing, i can hear my system sounds, i can hear my ringtone. i have tried the basic obvious things of looking at settings on my phone etc but the fact that all other music works has made me assume it's not a settings issue on my phone.

only other thing i have since tried is transferring from my phone to my fiancees laptop, deleting all the songs from the phone and then i put an album back on. no luck, didn't work. really gutted at the moment, just got this phone and love it but i will be gutted if there is some sort of weird restrictions causing me to not just take music from a pc.