|
Thu, Aug 19, 10 at 11:56
| Approximately how fast do disks, CDs, MP3s, DVDs etc. spin?
Approximately how fast do hard drives spin? |
Follow-Up Postings:
|
- Posted by don_1_2006 (My Page) on Thu, Aug 19, 10 at 17:27
| Discs - approx. 500 on the inside and 200 rpm on the outside. Hard drives - About 5400 to 12000+ rpm. |
|
- Posted by regus_patoff (My Page) on Mon, Aug 23, 10 at 9:38
| Most CDs and DVDs use CLV (Constant Linear Velocity). The RPM changes so that the Data Transfer Rate can remain the same. DVDs spin at 1530 rpm when reading at the innermost (starting) edge, CDs also start at the innermost edge Those are for standard 1x speed Over 12x speed, then they usually use CAV (Constant Angular Velocity), the RPM speed doesn't vary, but then the Data Transfer Rate does. |
Please Note: Only registered members are able to post messages to this forum. If you are a member, please log in. If you aren't yet a member, join now!
Return to the Electronics Forum
Instructions
- You must be a registered member and logged in to post messages on our forums.
- Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review the contents and make changes.
- After posting your message, you may need to refresh the forum page in order to see it.
- It is illegal to post copyrighted material without the owner's consent.
- HTML codes are allowed in the message field only.
- No advertising is allowed in any of the forums.
- If you would like to practice posting or uploading photos, please visit our Test forum.
- If you need assistance, please Contact Us and we will be happy to help.