So I went through this fan issue a while ago, and read a TON of forum posts that said the hard drive was the culpret for all the noise and NOT the fan... I didn't take the cover off and investigate this, but that's what I read, over and over again.

I ended up deciding to live with the noise until the HD TiVo comes out (probably early next year).

My series 1 Sony DirecTivo T-60 will continue to be loud until then, at which point I'll sell it to someone else who will be annoyed by the loud whirr...

- Jon