I am looking to upgrade my laserdisc player. What would be better, a pioneer elite CLD-99 or a CLD-97 with a AC-3 mod? I am currently using a pioneer CLD-D505. I do have a Yamaha DDP-1 sound processor that I am using for dolby digital discs. I want to be able to watch DTS discs as well which is one of the reasons for the upgrade. If it matters my TV is a HD 57" Toshiba 57H94. I am also using a Sony STR-DE945 receiver but I am running all video straight to the TV versus through the receiver at this time. I will be getting a better receiver someday but that will have to wait. Thanks in advance for any assistance.