Tech Tips Home
The Best Tech Tips And Daily Deals
Newsletter On The Internet!

WorldStart Tech Tip And Store Search
Email: Password: Login Remember Me

Like what you see here? Subscribe to the Tech Tips newsletter!   Email: Subscribe

Buffer Underrun Error

Thursday, November 11th, 2004 by | Filed Under: Multimedia

I was burning a CD-R the other day and got a “buffer underrun” error. The CD was useless and I had to start over. What causes that?

The short version: Your computer didn’t send information to the CD-R fast enough.

The long version: CD-R drives put information from your hard drive into a ” buffer ” (i.e. memory area) before they write (copy) it to the CD. The idea behind a buffer is to maintain a steady flow of information to the unit.

When you burn a CD, it’s done on the fly. The CD-R drive tries to keep its buffer full (or close to it) at all times. As long as there is information in the buffer, the CD-R drive can write to the CD.

If the buffer gets emptied out and not refilled (usually due to the computer being busy with something else) the CD-R drive has nothing to write to the CD that’s spinning inside of it. Unfortunately, a CD has to have information on every section that’s written, so you end up with the buffer underrun error and (in most cases) a CD-R disk that’s as worthless as a 286.

To help prevent this problem, don’t mess with your computer while it’s writing to a CD (you may want to disable your screen saver too).

~ Steve

Leave a Reply

Like these tips? Get them for FREE in your email!

WorldStart's Tech Tips Newsletter

  • Tech Tips Daily - Become a tech pro! Get the very best tech and computer help sent directly to your email every weekday!

  • Tech Tips Weekly - If you don't want our Tech Tips newsletter every day, then sign up for this weekly newsletter to get the best information of the week. Sent on Fridays.

Other Newsletters

  • WorldStart's Daily Deals - Every week, we send out great deals in our Daily Deals newsletter. Many of these deals are exclusively for our Daily Deals newsletter subscribers and can't be found with our regular specials.

  • Just For Grins - Each issue includes a couple clean jokes, some funny quotes, and a hilarious reader's story. Newsletter is sent five days a week.

Enter Email Address:


Your e-mail address is safe with us!
We only use it to send you the newsletters you request. It is NEVER disclosed to a third party for any reason, ever! Plus, if you decided you don't like our newsletters (don't worry, you'll love them), unsubscribing is fast and easy.

Free Newsletter Signup

Tech Tips Daily

Become a tech pro! Get the very best tech and computer help sent directly to your email every weekday!

Tech Tips Weekly

The week's best in tech and computer help. Get your issue sent to your email every Friday!

WorldStart's Daily Deals

The very best deals on the Internet! Get a new set of incredible sales every day of the week!

Just For Grins

Clean jokes, funny quotes, and hilarious comics. Sent 5 times a week straight to your email.


Love Worldstart? Refer A Friend!

WorldStart's Premium Membership

Tip Archive