Quick Help--Dvd Burning--some skips in the dvd

i have a movie im showing july 4th

heres the deal. the movie is about 7.0 gigabytes total. and the bonus features total approximately 1 gigabyte.

the dvds i have for burning are 8.5 gigabyte discs.


Now, i showed a copy to my friend today. Worked flawlessly.

Watched a copy myself once. Flawless.

Watched a different copy (3rd) yet again this morning. About 5 freezes (about 2 seconds each) within a 1 minute span. Then there was one about 3 minutes later.


Gave one to my friend tonight. He watched it. said there was a quick freeze (4 seconds) about every 5 minutes.


Now, the every time it was played in a different dvd player. Except, when i saw the movie, one copy worked fine in my dvd player, another skipped


all the dvd's are new, freshly burned
i'm using idvd
need quick help

THANKS