Re-read this post from AZImmotal very carefully -- he wrote you this:
"do you experience this freezing in the same spot in the movie every time? if not, it's unlikely that it's the iso file itself that's the problem."
You need to know the answer for ONE of your rips, but with multiple tries. In other words, multiple attempts to PLAY this one film, at the same point in the movie.
Try this: Open one of the ISO files on your PC. Play it. Watch it carefully, and find a spot where you definitely see the "freezing" symptom. Make a note of the approximate time into the film where this freezing occurred. Once you have seen this freezing, in any one spot, now try to rewind it. Play this same sequence again. Did it freeze in the exact same spot this time? Now, close the software. Completely. Shut down your computer. Restart. Open THAT SAME ISO file. Play it. Advance to the same "problem spot." Watch the timer, carefully. Find the precise place where you saw freezing in your first try, above. Did it freeze at the exact same place, the exact same sequence in the action?
If the answer is "no," and the answer is "it does NOT freeze at the same spot every time I watch it on my PC," then your ISO image is fine. You are merely experiencing software or hardware "glitches." The video software is not keeping up, or the video codecs used by your player software are flawed, or the hardware cannot keep up with the fast changing video on your PC. The FILE is fine. It is just your PLAYING that is quirky, and jumpy, and unpredictable, and flaky. You do not have a FILE problem, you have a problem when you try to play video on your computer.
How do you know the ISO file is fine? You saw it play with no "freezing," on at least one occasion. Even only once. That is your proof. The problem is in your PC, either with the software , or the drivers, or the memory, or the actual hardware on your PC. Video is TOUGH, and on many PCs, even a program or two running in the background will cause timing issues, as the PC tries to divvy out the memory between this video, and the other stuff that is also open (even if you are not aware it is open).
If this is the case (as I suspect), then that file is perfectly fine. It is identical to the original DVD, except the copy protection has been removed.
If you followed my suggested steps above, in an earlier post, and you created that file using DVDDecrypter -- with the default settings -- using the latest version -- using ISO READ mode -- then I know this is the true.
Then, the file is fine. It is "perfect." It is CAPABLE of being burned, assuming all of the other steps are followed. Assuming you do not try to multi-task while you burn, assuming you do not try to burn too fast, assuming you use good media (Verbatim DVD+R dual layer), assuming you do a straight ISO READ when you burn, and assuming your PC can hande burning and your DVD burner is okay.
Hope this is clear.