Music Question Please. i'm curious.

[RayXL20]

it seems as though i kept googling for sites to put my old AMV i had on my old YT witch surprisingly is still there. my real question is it ok if i use my own made music on the AMVs i make? also its alright if i use music from Production music sites? because iv'e done tons of videos on YT and most of them seem to stay on. even from yt's audioswap feature. my YT is mainly for videos of me playing my games and using copyright music that audioswap provided me so i can do VGMVs. sometimes my created music instead.

is this a good thing or no. let me know....i may put them here or dailymotion if they agree as well.