sony dvd-r discs?

[Kadawg]

I have purchased 30 dvd-r sony 120 min 4.7 gb discs...when i make a backup of my games they skip like mad....all originals play just fine....i keep hearring how ritek is the way to go.....can someone shed some light on why ritek is any better than sony..and memorex for that matter....and what i may be doing wrong i have used dvd dycrypter....nero....disc juggler...ect ect..but all play the intro mostly flawlwessly then when the higher graphics start it skips in like 1 second chunks and is unbearable