UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - King's speech unedited BBC recording. Value?

julie_m · 19th Jul 2017, 8:57 pm

CDs and DVDs are CLV (constant linear velocity) though (at least, during playback; recording can be done at constant angular velocity, only slowing down if the data buffer is getting emptied faster than it is filling up). They speed up towards the centre, so as to keep the number of bits per metre constant.

I can see why records were CAV, though ..... it would be a nightmare to implement CLV in the mechanical domain!

19th Jul 2017, 8:57 pm	#66
julie_m Dekatron Join Date: May 2008 Location: Derby, UK. Posts: 7,735	Re: King's speech unedited BBC recording. Value? CDs and DVDs are CLV (constant linear velocity) though (at least, during playback; recording can be done at constant angular velocity, only slowing down if the data buffer is getting emptied faster than it is filling up). They speed up towards the centre, so as to keep the number of bits per metre constant. I can see why records were CAV, though ..... it would be a nightmare to implement CLV in the mechanical domain! __________________ If I have seen further than others, it is because I was standing on a pile of failed experiments.