Originally Posted by jason978
The whirring noise is also disk dependent. Some disks it's quiet start to finish some it starts noisy then quiets down.
I did some checking on the disks I have,
Elf starts noisy, noise is gone by chap. 4
stargate starts noisy, noise is gone by chap. 4
star wars: the clone wars starts noisy, noise is gone by chap. 8(about 12minutes in)
Terminator 2starts noisy, noise is gone by chap. 8
Polar express the new 3d disk that came out, it has both 2d and 3d versions
2D version is quiet from start to finsh
3D starts noisy, noise is gone by chap. 4.
Can anyone else check any of these disks if they have them.
OK, I just tried Stargate and Terminator 2 (both from Lionsgate). My BD55 is presently out in the open, and I listened from 2-3 feet away with the TV volume turned completely down. Both discs make clunking and whirring/rushing sounds when displaying menus. (I think all discs do that.) After that, both discs continue to make a whirring/rushing sound that gets softer and softer from one chapter to the next. It is nearly inaudible by about 45 minutes into each movie (roughly chapter 13), but of course the exact point of inaudibility is debatable.
While I was at it, I also tried Iron Man. It takes longer to boot, but it is quieter once it starts playing and almost inaudible by chapter 3.
These sounds are similar to what I hear from all computer optical disc drives. When reading near the start of the disc (toward the center) the disc is spinning fastest, hence the whirring sound. As reading progresses further and further out toward the edge, the disc slows down, and the whirring sound diminishes.
If things like extras are placed out further on the disc, they will cause less drive noise, but the feature placed at the start of the disc will cause more whirring. If some of the extras are located physically ahead of the feature, then the feature may play with less audible whirring. That could account for some differences between discs.
We would all rather our players be completely silent, of course, but I don't find anything I've heard to be particularly worrisome, maybe because I've been dealing with computer drives for many years.