I just discovered why I had a problem with the grungebuster with a very small number of discs and would like to point out that it is in no way a fault of the mat and that nobody else is likely to experience this.
Was doing some more tweaking to my DVD player in the past few days and noticed that the clamping wheel on my player when engaged was making contact (with a few thicker disks) with some damping material I had installed on the underside of the lid. Cutting out a small amount of this damping material allows full clearance for use of the mat with any of my discs now.
Obviously, I will be using the grungebuster happily with everything now. Still highly recommended.
Was doing some more tweaking to my DVD player in the past few days and noticed that the clamping wheel on my player when engaged was making contact (with a few thicker disks) with some damping material I had installed on the underside of the lid. Cutting out a small amount of this damping material allows full clearance for use of the mat with any of my discs now.
Obviously, I will be using the grungebuster happily with everything now. Still highly recommended.