It is not the record feature. I own the same model and it does the same to pre-recorded DVDs. I was watching Two Weeks Notice and it froze and stopped too. My recorded DVDs seem to work fine so far.
I would suggest looking into an over-heating solution for the problem as my machine works fine after turning the power off for a few minutes and restarting at the stopped area (noted the time it stopped at and fast forwarded to that point).
Tony
February 2008