I know that I have written on this subject before, but cannot find it now. This will be posted in the Read First For Help thread, so I can refer people to this information.

It is usually best to back up main movie only for several reasons. You can usually get it on a Single Layer disc that are reasonably priced especially when you buy in bulk online and free S&H is included. You can find TYs for about $.25 each delivered in lots of 200.

Less compression has a better picture and there are not a lot of ads and other annoying extras to delay the start of the movie.

The best reason is that DVD producers do not want a large number of dissatisfied buyers, so they place all kind of tricks in the extras. If they are not careful, the protection will cause problems on many players, so they figure people are less likely to exchange a DVD as long as the movie plays okay. They put bad sectors, vobs, etc., and sometimes they will put a scene in there that keeps repeating and expanding when one tries to compress the contents of the DVD. These lurk in the extras and when played they are skipped unless you try to change the contents.

Another trick is to get you to install a player that is included on the DVD. Sony settled some law suites by several states for using this to put malware on peoples computers that caused a lot of problems when you tried to copy their DVDs. This was called rootkill and could disable your burner.

Also, never install Inner Actual Player as it can cause problems. If you notice Fab take awhile to load minimize Fab and you may see a screen requesting to install this or another player. Always deny the request and close the box. You might want to put DVD in and wait several seconds to see if a player tries to install.