Does Blu-Ray use a fixed or variable spindle speed? - Club CDFreaks

sharkskin · 19-02-2008

^^^ Topic

Would appreciate any links to specs, white papers, etc. that definitively state the case one way or the other.

**platinumsword** · 19-02-2008

Try looking here.

http://club.cdfreaks.com/f149/hd-whi...-links-235995/

sharkskin · 19-02-2008

I saw those links on blu-raydisc.com but didn't find the answer.

I'm just wondering if the constant transfer rate is achieved by varying the spindle speed or by varying the bit density.

**zevia** · 20-02-2008

As in CD and DVD, the CLV (constant linear velocity) is achived by varying rotational velocity (RPM) as head moves from center toward the end of disc, or vise versa.

Is that what you're asking?

19-02-2008	#1 (permalink)
sharkskin New on Forum Join Date: Feb 2008 Posts: 24	Does Blu-Ray use a fixed or variable spindle speed? <a href='http://adstats.cdfreaks.com/www/delivery/ck.php?n=a13febf7&cb=INSERT_RANDOM_NUMBER_HERE' target='_blank'><img src='http://adstats.cdfreaks.com/www/delivery/avw.php?zoneid=30&cb=INSERT_RANDOM_NUMBER_HERE&n=a13febf7' border='0' alt='' /></a> ^^^ Topic Would appreciate any links to specs, white papers, etc. that definitively state the case one way or the other. Last edited by sharkskin; 19-02-2008 at 21:14.

19-02-2008	#2 (permalink)
platinumsword Moderator Join Date: Oct 2005 Posts: 2,852	Re: Does Blu-Ray use a fixed or variable spindle speed? Try looking here. http://club.cdfreaks.com/f149/hd-whi...-links-235995/ __________________ Platinumsword's New Build Here

19-02-2008	#3 (permalink)
sharkskin New on Forum Join Date: Feb 2008 Posts: 24	Re: Does Blu-Ray use a fixed or variable spindle speed? I saw those links on blu-raydisc.com but didn't find the answer. I'm just wondering if the constant transfer rate is achieved by varying the spindle speed or by varying the bit density.

20-02-2008	#4 (permalink)
zevia Admin & Review Coordinator N.America Join Date: Jul 2004 Location: USA Posts: 9,521	Re: Does Blu-Ray use a fixed or variable spindle speed? As in CD and DVD, the CLV (constant linear velocity) is achived by varying rotational velocity (RPM) as head moves from center toward the end of disc, or vise versa. Is that what you're asking? __________________ Click here to join CDFreaks.com Join CDFreaks Distributed Computing Team, have fun while helping to save some lives! My review PC & Specs & Media Blu-ray to DVD guide Forum Rules \| Blu-ray UDF Driver BenQ/Philips FAQ and tools: BQFlasher, MCSE, WOPC Tool, WinDWFlash LG GGW-H10N Blu-ray/HD-DVD \| LG GBW-H10N Blu-ray \| Panasonic SW-5582 Blu-ray

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