Page 1 of Sony DVD 305 Multi Region Sound Problems

has anybody come across sounds problem with the Sony 305 Multi Region - sound going load & soft on DVD`s

It happens mainly with Disney DVD`s - Monster Inc - Region 2 and Lilo & Stitch - Region 1

I am playing through scart IXOS to a Sony 36" TV

Is it the player, TV or maybe the DVD`s?

Any help please