Video Playback / Recording Devices

I have a Panasonic VCR (PV-V464S) and subscribe to Comcast standard cable. Just recently we started having trouble with the sound on some of the channels only when recording on our VCR or when watching our TV with the VCR on -- watching the TV directly w/o going through VCR is fine. The problems are that we get no sound at all on ABC, TNT & USA, WB goes in & out intermittantly, and Fox and Lifetime play sound but for the wrong channel.

i have a gpx dvd plaayer and it will not read any disks of any kind. if any one has any ideas please email me at [email protected]
thank you

Toshiba SD 4800 will not play dvds (any dvd). Only says "Loading" on the dvd's front display. What's up with that? Is there a master reset (hardware or software) that I can do?