Originally Posted by Bill Mac
I clean all discs (CD, DVD-A, Blu-ray and SACD) when needed with water and liquid soap by hand. Then I dry them with a soft towel from the center of the disc out. Leaves no scratches at all.
Thanks Bill, maybe I'll try water although I don't like the idea of using any sort of cloth (and I only have tried super soft materials that are designed to clean glasses, computer screens, etc., which are fine for those since glass is obviously much harder of a surface).
Originally Posted by rdgrimes
If you're leaving scratches then you're doing it wrong.
But anyway there's actually a considerable selection of "disc cleaning" and "disc repairing" machines that are meant to salvage discs which no longer play.
I use one like THIS
. DVDs have a coating that is meant to limit scratches, as do SACD. CDs are the most vulnerable. Blu-rays are even harder than DVDs and UHD discs are the toughest.
Use no paper products, only clean, soft lint-free cotton cloths to clean. Some people like microfiber cloths but I find those do leave some lint.
Thanks for your input and suggestions. However, I've been buying CDs, DVDs, SACDs, and blu-rays for years and so I'm quite familiar with them. I am also an extremely meticulous and even OCD type person, so probably you didn't notice the type of light scratches I'm talking about. I mean the ones that you only really see when you hold them up to the light and reflect light off the surface. Most people who are not OCD like me probably never do that and never noticed the scratches.
, CDs and DVDs do not have any protective layer on the reflective data side like blu-rays do. Blu-rays (and UHD) have a protective layer in the blu-ray spec because the data layer is closer to the surface and more susceptible to damage and that's why they are the only optical disc (not counting things like LaserDisc as I don't know about those) that contain MC audio that do, which is why those are the only ones you can reliably clean with a soft cloth without leaving any marks. The spec doesn't specify a particular type of coating though and so that can vary. IME, some blu-rays cannot be scratched unless you really try to using some sort of sharp tool. Scratching it with your fingernails doesn't leave a mark, whereas even touching the reflective surface of a DVD or CD with almost anything will leave very, very faint marks.
The product you linked to is no longer available but I've used the most popular consumer product available on amazon (the JFJ Easy Pro) and ended up returning it as they have a generous return policy due to it not doing what I hoped it would. Those products are really intended to restore discs with more significant scratches that affect playback, and if you read enough reviews you see that they are not products that can "polish" a disc surface to like-new condition. I know pro machines can restore discs to like-new condition as a local CD shop in the Bay Area that sold used CDs (Amoeba Records) used one to resurface used discs they resold, but those are very pricey and probably more so now that CDs and DVDs are nearly obsolete. Haven't tried the Azuradisc which costs several thousand dollars.
Anyways, I've always had a "never touch" policy with new SACD/DVD-A that I buy, like I literally will never touch the surface with anything. I will blow air (or use a compressed air can) to remove dust but will never physically touch the surface with any material. I guess I could use water to rinse them but I wouldn't want to leave spots that might be left if not physically dried, which I don't want to do. The only problem is when I buy a used disc that looks good (I re-sell the ones that have notable scratches on them) otherwise but has that one fingerprint that drives me crazy. I try not to buy used but some discs are just too hard to find new/sealed.