Question about Bose (321GS) System

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Can't read the disc !!

I had a problem w/. my bose 321 that i bought less than 2 years ago.
It happened lately now everytime i rent a movie and play w/. it
at beginning always fine but when it is in the middle of the movie
it stops and said CAN'T READ THE DISC.
So i tried to clean it w/. the lens disc cleaner
and then play the movie again and it happens again not long after, saying CAN'T RED THE DISC.
And then i tried to play it w/ . my portable dvd player
all the movies had no problem at all. It played fine till the end.
plz help me w/. this anyone !!!

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Re: can't read the disc !!

I replayced dvd cd-rom myself it's very simple repair and it cost me $20.00 for new dvd rom. Don't buy CD-RW but just simple black dvd-rom.
I hope this will get you going again.

Posted on Mar 27, 2008

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Hi i have a bose 321 and when trying to play a movie i get an error message that says cannot read disc. How do i fix?

Your unit has developed a drive problem in most cases. This means either the disc motor or the laser unit is nonfunctional or out of alignment. Not for the faint of heart.

Question: Can you feel or hear the drive motor running during "load" or hear a shuffling or clocking noise? That latter would indicate that the laser is at least looking or the disc.

Question: Will the unit play a CD or accept a cleaning disc? If so, it is generally an alignment problem.

Good luck.

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Unfortunatley no, its not software that reads dual layer discs, its hardware. I sold Bose for 2 years and do not know of any Bose items that will read dual-alyer discs. Dr. Bose has a hard time keeping up with technology sometimes. Other than that, the 321 is a great system!

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Could just be the dvds? Or not...

Replace the laser that reads the discs!

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This depends on the source. If this happens internally (from a DVD in the 321) then the problem should be able to be resolved by just resetting the 321. (unplug the power cord from the sub for 30+ seconds) -If this is from external sources like a cable box, believe it or not, you can reset the cable box the exact same way. If resets don't fix this (and this is external) then check the cable box's settings for a/v delay compensation.

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if will not read a laser lens cleaning disc , then it will need to be opened up and the laser lens will need to be cleaned manually with the cleaning solution and a cotton tip , but do it easy and dry the lens with the cotton tip
if that don't do it then the laser mechanism will need replacing


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I had the same problem listed; send an email to BOSE tech support - they sent me a DVD with a bios upgrade and it fixed the problem. They should put the BIOS upgrade on their website so you could burn your own DVD rather than waiting for the mail. But it did fix the problem. Netflix disks were the worst; they must do something when they burn them to get that forced Ad to play that Bose doesn't like.

Dec 20, 2007 | Bose (321GS) System

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I love my Bose 321 DVD system, but a few days ago, it started acting weird. I put in a DVD, and it reads - "No Disc".....and I'm not sure why. I cleaned the disc, and I also played a DVD/CD Maintenance kit - I'm not sure what is wrong. It seems like I have a problem within the system - what can I do?

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Turn the switch off on the rear of the Acoustimass module (subwoofer); wait 30seconds; turn on, system shows "Bose 321"; as soon as this disappears, press "Open/Close" button. If the drive hasn't failed, the drawer will open. It's worth contacting Bose to check the system software is up to date - if it isn't, they'll send an update disc free of charge.
If this doesn't give the disc back, contact Bose for a repair - it could have happened if the disc was accidentally put in upside down. Otherwise, the drive may have failed - this could happen to any make of product, no matter what the cost or make, that's why you have a warranty.

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