I have an A05, and am very pleased with it. You'll need hacked firmware to burn at higher-than-rated speeds, read about it at:
http://forum.firmware-flash.com/view...7f2bacaf66b03f
Mine plays well with a variety of cheaper media, including Ritek and several 'unbranded'--but I can't vouch for whatever Comp is selling... Online purchases are usually best, from Rima or allmediaoutlet, and their ilk.
And yes, you have to use burning software that'll allow it (I rather like Copy2DVD...).