Well if he ordered a Magic 3.1 he might not have much problems at all...
I ordered one and I was worried at first. I did have problems with Devil May Cry 2. The movies would freeze... However it was an iso from the net. I then tried backing up the original game and it worked no problem
Since then I haven't had problems with DVDs or CD-Rs on my PS2 V7+Magic 3.1
Even when the CD-Rs are burned at 12X they work awesome
Also a game that is said to have problems with Magic chips is GTA: Vice City and it works perfect for me as well.
I did pay for professional install... so maybe that is one of the main problems many people have. Could also be the version of the PS2 perhaps.
Oh yeah I did heard also about people having problems with princo DVD-Rs. Untill now not one Princo DVD-R has failed to work for me.
I bought some no name. White tops, dark blue bottoms. I bought them as Princo on Ebay. They are 1x.