limited DVD picture with Sony Trinitron

I have a Sony Trinitron KV-M2511U and have just bought an Alba DVD player. Everything works fine except that above and below the picture there are bands of empty screen approx 3'' high. The screen height is 14'' so I lose 6'' of picture whenever I watch a DVD! I have noticed differences depending on the DVD - I got more picture watching a 1:78:1 DVD than 2:35:1 or 16:9. I tested the same DVD on an older TV and the black bands were much smaller than on my Trinitron! I have also played around with the DVD player options but there is no difference between normal/ps and normal lb. The third option is ''wide'' but this distorts the picture even though the black bands are smaller. I have a trintiron remote RM-670 and I was wondering if there was a button on that which might help. Please advise. Many thanks

Reply