I wasn't quite sure where to put this question but here goes.

I have been trying to burn some playlists to CD to play in an old car, both of songs purchased from the iTunes store and songs I have imported myself from original CD's. I am using a recent MacBook Pro Retina on 10.10.4 and iTunes 12.2.1 with a USB CD burner which is listed as supported. I am not getting any error codes or anything. The process seems to go ok except that the CD isn't actually burnt.

I realise that it's not common to burn CD's now but any help would be appreciated.