I used this DVD Drive Cleaner first on my Magnavox DVR hooked up to my cable box.  Before cleaning I was starting to get pauses during playback of purchased or burned (from magnavox DVR disk) Movies.  After Cleaning, PROBLEMS SOLVED.  I used the allsop first because of the carbon edge aspect to remove static particles, and with 8 brushes on the disk, it did a great job cleaning.  DVD Movies now have great color and look sharper.