Closed Captioning and jerky PC-based DVD video playback

[hollowman]

When I enable Closed Captioning on my PC-based DVD player (e.g. TheaterTek WinDVD, PowerDVD), the playback becomes very jerky whenever CC titles appear. I used Windows ProcessExplorer (or Task Mgr) to delete as many unnecessary background processes as possible -- but this makes little difference.

I'm new to this forum so the answer to this query may be in the archives. Apologies for any waste-of-bandwidth redundancy.

My PC: Win XP Pro (SP1); Self-built Pentium IV 2.8MHz/ RAM 1.0 GB. Using an Antec Sonata Tower w/380 watt power supply, isolated with Dynamat insulation. Additional cooling via internal 80 mm Papst 8412NGL Quiet-Case Fan. Tower rests on Audioquest Sorbothane feet with two VPI Bricks on top of tower to further damp and curtail power-supply-based electromagnetic distortion. Video card: ATI Radeon 9600 with 256 MB video RAM. Sound card: M-Audio 24/96 Audiophile. Motherboard: Asus P4800 Deluxe. Hard-drive: SATA Seagate 500GB . Optical Drives currently used: BenQ DW1640 and DW1655; Sony DRU-530A; Lite-On LTC-48161H.

[Baldrick]

Does the performance->cpu usage in the task manager hit 100% when you play with cc?

[hollowman]

Does the performance->cpu usage in the task manager hit 100% when you play with cc?

No, never that high. But, CC does increase CPU Usage by 6-10%. Max CPU Usage is 35% using WinDVD. TheaterTek's CPU Usage is a little lower.

I've compared the different software players a bit further (since my orig post). It seems TheaterTek's CC hangs up more than WinDVD or PowerDVD.

Basic, lazy question: What is the "best" software DVD player currently avail.?

[Baldrick]

Maybe a video card issue, tried upgrade to latest ati drivers?

Or maybe try some free dvd software player like kmplayer, it should support closed caption according to the changelog.