You can add a start and end cues for a wave file, this is how maps read a looped sound such as a waterfall or water running for example, this simplifies the mapping process as well gives sound editing alot more flexability.
You can use for a fact GoldWave to do this. Load a wav file, tool-> Cue Points. I think the nero wave editor can do this as well, but I am not sure. Have heard others say cool edit can do this but again not sure.
Best bet would be to grab a different wav all together (in the same frequency/bit depth as the dd wav) and rename it to the DD wav file, and see if that fixes the issue.
If it is in a certain pose or angle it may be caused by A3d sound or EAX being enabled or even high quality sound, and the game telling your sound card to emulate the sound as it would with one of those cards, but your card doesnt support it, so in order to save face, it crashes your hl.
**EDIT**
To disable them, in sound options uncheck A4d and EAX support or type in the console "s_eax 0; s_a3d 0" (no quotes)
then press enter
**/EDIT**
Also try different video modes, sftware, OGL mini glide, D3d, and see if it still crashes.
Also killed with style, id wait till HL2 SDK comes out before asking esf about converting it, so far no plans for that, the main issue would be the code, as it will none the less drasticlly change with HL2 as they appear to have rebuilt the entire engine, other issues would be maps, models, animations, and sprites.
