Recordnow with DVD+RW

[xbmod]

Ok, I've been burning ps 1 games for years and xbox since the first modd came out. I finally bought a PS2 and the boot disk. I'm using Recordnow and a Ricoh MP5125A DVD+R/RW with DVD+RW disk. I used the tutoria from this forum but still no luck. I can read the ps2 game without using isobuster. So I just copyed all the file on my hdd and tried copying them no luck. What I'm I doing wrong? Will DVD+RW work in ps2?