Playing SVCD in Apex-500a mess up at end

[Alexander]

I have been trying to play some SVCD movies in my Apex 500a.
The movies are burned on 80-minute CD's. When the movies get to about the 68 minute mark (playing time), the audio and video start to mess up. The video begins to get choppy. The audio starts to drop out and gets out of sync with the video. I am using Memorex 80 minute CDs.

Is this due a bad CD? Or is it due to the Apex player not being able to play around the edge of the CD?

I believe some have played fine, but lately they have been messing up towards the end of each disc.

Any suggestions? Any recommended CDR media?

Thanks.

[Alexander]

One other note is that I am using the latest version of Nero to burn the file.