Another Problem With BCD-1

Viola · « **Reply #20 on:** 16 Oct 2009, 10:48 pm »

Your disc might have built up magnetism over time.

Stu Pitt · « **Reply #21 on:** 16 Oct 2009, 11:53 pm »

I use Pledge Mutli Surface to clean my CDs. The non-aerosol type. It cleans, anti-statics (is that a word?), and shines. I've noticed a big difference in sound quality after the CDs are cleaned with it. Its pretty cheap and actually serves more than one purpose.

rob80b · « **Reply #22 on:** 17 Oct 2009, 06:35 pm »

Quote from: RandyH on 12 Oct 2009, 09:36 pm

If your computer can read the CD you might try making a copy and see if the BCD-1 will read the copy. I have a couple of CDs in my collection that have scratches such that they create playing problems with my primary CD player. However the CD drive on my computer is able to read them fine and likewise make good copies. These copies play fine on my CD player. This will only work if the source of the problem is a physical defect or damage to the CD itself. I've owned a number of CD players in my life and have learned that some are much more tolerant of damaged or scratched CDs than others.

I've done this a few times with damaged discs, especially with discs that have developed a few pin holes or oxidization between layers. This may work with the faulty disc but try copying the audio tracks only.

Wayner · « **Reply #23 on:** 17 Oct 2009, 06:48 pm »

Quote from: Viola on 16 Oct 2009, 10:48 pm

Your disc might have built up magnetism over time.

You need iron to develope magnetism. CDs are made from polycarbonate and aluminum.

Wayner

gerald porzio · « **Reply #24 on:** 17 Oct 2009, 08:35 pm »

Magnetism seems to have developed a life of it's own. Some claim it affects CDs while some claim it affects LPs. This has as much scientific/physics validity as water flowing uphill. There are some immutable laws which aren't affected by claims of knowing what one hears. I'll leave it at that.

srb · « **Reply #25 on:** 17 Oct 2009, 09:04 pm »

I think some people confuse magnetism with static electricity charge.

Steve

Wayner · « **Reply #26 on:** 17 Oct 2009, 09:10 pm »

And since CDs are read by optical lasers, how does static electricity affect the reading process? And How would you ever charge up a CD? Wool socks and just rub your feet like a mad man on carpet? The water flowing up hill is a better theory.

Wayner

srb · « **Reply #27 on:** 17 Oct 2009, 09:13 pm »

Quote from: Wayner on 17 Oct 2009, 09:10 pm

And since CDs are read by optical lasers, how does static electricity affect the reading process?
Wayner

It attracts dust to the surface of the CD.

Steve

Wayner · « **Reply #28 on:** 17 Oct 2009, 09:21 pm »

OK. I'm not sure if I've seen a lot of dusty CD's but I suppose that could be a cause. There is dust on vinyl, that's for sure. However, CDs spin at at fairly high RPM and one might wonder if the dust floats off of the surface, if there is really that much.

In fact, I just looked at a couple of my CDs and I don't really see any dust. I do see scratches and imperfections of that nature. I am always careful when handling my CDs, but there are still some slight scratches in the polycarbonate surface.

Wayner

KeithA · « **Reply #29 on:** 17 Oct 2009, 09:31 pm »

Quote from: Wayner on 17 Oct 2009, 06:48 pm

Quote from: Viola on 16 Oct 2009, 10:48 pm
Your disc might have built up magnetism over time.

You need iron to develope magnetism. CDs are made from polycarbonate and aluminum.

Wayner

Wayner

If you want to know the 'theory' do a search on the Furutech Demag unit

Let's just say there's no shortage of 'hot' debate on the merits of that unit

Keith

Wayner · « **Reply #30 on:** 17 Oct 2009, 09:33 pm »

I've talked to several post owners of the said product who believe that it, in so many words, is a POS.

Wayner

KeithA · « **Reply #31 on:** 17 Oct 2009, 09:35 pm »

Quote from: Wayner on 17 Oct 2009, 09:33 pm

I've talked to several post owners of the said product who believe that it, in so many words, is a POS.

Wayner

Yeah, I'm in the 'against' camp on that particular unit

Keith

James Tanner · « **Reply #32 on:** 17 Oct 2009, 09:38 pm »

I had a CD one time that was so magnetized it stopped my watch everytime I played it

james

srb · « **Reply #33 on:** 17 Oct 2009, 09:40 pm »

Quote from: Wayner on 17 Oct 2009, 09:21 pm

OK. I'm not sure if I've seen a lot of dusty CD's but I suppose that could be a cause. There is dust on vinyl, that's for sure. However, CDs spin at at fairly high RPM and one might wonder if the dust floats off of the surface, if there is really that much.

In fact, I just looked at a couple of my CDs and I don't really see any dust. I do see scratches and imperfections of that nature.

Atmospheric dust ranges from 100 microns to as small .001 micron, but I don't know if that presents a real problem. I guess it would depend how dusty your internal atmosphere is.

I'm just a simple caveman. And although this modern world sometimes frightens and confuses me, there is one thing I do know:

If you buy "cutout CDs" from oldies.com (and others?), there will be small microbits of plastic from the case punching process that you can see statically clinging to the surface. And they won't shake off, nor will they spin off. They must be gently wiped off.

Steve

Wayner · « **Reply #34 on:** 17 Oct 2009, 09:42 pm »

Thanks, Keith.

I think that there are just some problematic CDs for certain CD players. Right now I just bought a new laptop computer HP 4510s with duo co-processers, faster then hell, but the CD burner has trouble reading CD-R and CD-RWs. is it the burner, is it the software? I don't really know. It's pissing me off as I do put a bit of vinyl onto CD. I do think it's the software. It will usually read the first track, when ripping, and then just sit there.

Wayner

Wayner · « **Reply #35 on:** 17 Oct 2009, 09:45 pm »

James,

I do think that CDs can pick up static as LPs do. I'm just not sure what that does to the optical reader. I've never had a problem with CDs that I could relate to "static" that would prevent them from playing.

Wayner

James Tanner · « **Reply #36 on:** 17 Oct 2009, 09:47 pm »

Quote from: Wayner on 17 Oct 2009, 09:45 pm

James,

I do think that CDs can pick up static as LPs do. I'm just not sure what that does to the optical reader. I've never had a problem with CDs that I could relate to "static" that would prevent them from playing.

Wayner

Me neither but I have had issues with CD's not playing and give them a good cleaning and they seem to work fine?

james

Wayner · « **Reply #37 on:** 17 Oct 2009, 09:54 pm »

James,

I hate to bring this up, but have you ever tried to darken the edge of your CD with a magic marker (any dark color, I use black). I've wondered about this and can maybe understand surface scuffs and scattering within the polycarbonate first surface and the reader's ability to read thru the scattering. I've tried it, but can't claim any better or worse performance. There is a company promoting "green" colored edge treatment, but IMHO, I think that's just bogus.

Wayner

KeithA · « **Reply #38 on:** 17 Oct 2009, 10:24 pm »

Quote from: James Tanner on 17 Oct 2009, 09:38 pm

I had a CD one time that was so magnetized it stopped my watch everytime I played it

james

Hmmm..that could stop you from aging....

Keith

KeithA · « **Reply #39 on:** 17 Oct 2009, 10:27 pm »

Quote from: Wayner on 17 Oct 2009, 09:42 pm

Thanks, Keith.

I think that there are just some problematic CDs for certain CD players. Right now I just bought a new laptop computer HP 4510s with duo co-processers, faster then hell, but the CD burner has trouble reading CD-R and CD-RWs. is it the burner, is it the software? I don't really know. It's pissing me off as I do put a bit of vinyl onto CD. I do think it's the software. It will usually read the first track, when ripping, and then just sit there.

Wayner

Oddly enough

I've been spending a portion of the day ripping CDs via EAC for use with my Transporter and I had one CD that had trouble reading two tracks...twice. I took it out and it looked clean as a whistle, but I wiped it anyway.

Put it back in and no problems

The quirks of computers..I'm sure it's just a quirk of the CD drive.

Keith