DVD Rattle...what is it?

[Anita]

This is totally a non VX subject but one that drives me to distraction.

Why do some DVDs "rattle" when you play them? AWFUL noise, it happens with old and new DVDs. I even had a new DVD that made that noise the first time I played it and then it disappeared for good subsequent times. Is there anything you can do to stop it other than replace the DVD?

[VXR]

This is totally a non VX subject but one that drives me to distraction.

Why do some DVDs "rattle" when you play them? AWFUL noise, it happens with old and new DVDs. I even had a new DVD that made that noise the first time I played it and then it disappeared for good subsequent times. Is there anything you can do to stop it other than replace the DVD?

I am guessing that since your saying non-vx you may be talking laptop???

If it happens with different dvds I would say the drive is to blame and/or how the dvd is seated

[vt_maverick]

That's a pretty difficult thing to diagnose over the net - probably your best bet is to take the DVDs that make the noise to a friend's house to see if they make the same noise in another player. I wouldn't bother to take it in for service unless it's still within the manufacturer's warranty period, generally speaking the difference between repair vs. replacement costs isn't that great for home electronics.

[Ldub]

But I've never played a DVD on anything other than a PS3, so...

[Moncha]

In my experience, The biggest problem is warpage. Even the slightest warp when spun at high speed can cause major flex in the disc. When that is combined with the tight spaces within the player you hear noise.

[Anita]

Sorry for not being concise. Its my home dvd player - not computer. Only a few of my dvds in a too-large a collection do this; some only make that buzz sound during certain parts of play and not throughout. Like only 3 minutes playtime or longer. I will check for warpage. Thanks!

[Triathlete]

The answer to your question is quite simple...



...your load resistance through the potentiometer in your pre amplification section has not been appropriately minimized.


In other words you need to turn up the volume!

[Riff Raff]

- probably your best bet is to take the DVDs that make the noise to a friend's house to see if they make the same noise in another player.

x2. Further testing of the suspected DVD's in another DVD player would be my next step. If the DVD's play fine in your friend's DVD player, then it may be just YOUR home DVD player that is at fault, not the DVD disc itself. If the DVD's also rattle in your friend's DVD player, then donate the warped DVD's to your local Skeet Shooting Range for "Pigeon Targets". Problem solved.

[VXR]

some only make that buzz sound during certain parts of play and not throughout. Like only 3 minutes playtime or longer. I will check for warpage. Thanks!

I would say it is the player itself since it is intermittent. I think the noise would be more constant if the dvd was warped

I have had more than one laptop do this with certain disks

[mdwyer]

[QUOTE=Anita;217826]

• Only a few of my dvds do this
• during certain parts of play

DVD disks are played with constant linear velocity. Or in other words, they spin the disk faster when they're reading the outside tracks and slow them down when they're reading the middle. This explains why it only happens during some times.

The other point has already been explained by everyone else. When your tires are unbalanced or warped, your steering wheel vibrates. Similarly, when your DVDs are unbalanced, they vibrate while spinning. Some of your disks must be better balanced than others. First, make sure there aren't any stickers on the disk that would throw it out of balance. Other than that, I don't think there's much more you can do.

[Triathlete]

Other than that, I don't think there's much more you can do.

Refer to my post above.