Can DVD+R get infected by a fungus?
1 DVD + R creates and catch fungus?
2 my DVD + R before handling Always wash hands with water but unintentionally I touched down on the surface of the disc, I'm worried about fungal growth on the DVDs? -- merged -- Can someone help me with these questions please? |
I've been using DVD-R (and later DVD+R) for almost 15 years now. I've never seen fungus in or on discs. Never. And I've handled at least half a million discs. (I never counted. It's probably more!) That just does not happen. Never seen it, never even heard of it.
Some CDs, yes -- but that's another story. It's VERY rare, and can only infest CD, not DVD, because of how the discs are made. It also has a lot to do with location, and the quality of the CD media. Again, DVD, no. Never. Not a worry you should have. Just use good discs, store them properly, the end. |
1 My friend has a disc with dark spots and other transparent disc with holes, holes as if corroding media inside and increase in size, what is it?
2 Because fungi can only infect CD and not DVD + R? what DVD + R has to protect it from fungus attack? I know of no material DVD that is immune to fungus 3 my media is Philips DVD + R 16X ID: CMC MAG M01 |
1. Define "discs". Verify it's a DVD.
- DVD+RW often form craters in the dye. - Cheap DVD-R, DVD+R, DVD-RW and DVD+RW can have bonding issues, which can affect the outer perimeter of a disc. - CD can have pinhole issue in the foil. 2. The disc is sealed. Vacuum sealed. If that breaks open, the disc is dead anyway. Fungus cannot "get into" (infect) discs. It has to ALREADY be in the media from some poor manufacturing. That's NEVER happened to my knowledge. There are certain factors of materials, manufacturing errors, disc construction, and environment that caused the CD (and Laserdisc) errors. It's not possible with DVD. 3. You have budget consumer media. It's not great, but it's also not going to come down with a case of fungi. |
1 You did not answer some of my questions: What protection is a DVD + R to have no risk of fungus that does not have a CD?
2 The disc was sealed but the fungus can grow and eat through the polycarbonate or polycarbonate and come inside the disc has a fungus Geotrichum eating polycarbonate and I'm worried if my discs and my drive is contaminated with fungi, find no concrete answer on fungi in medias 3 My friend has a disc with dark spots and other transparent disc with holes, holes if the corroding medium inside and Increase in size, what is it? |
Your question doesn't make any sense.
- Does it have "protection"? No. - Does it need protection? Also no. DVDs also don't have protection from tigers, but it's not likely that a big cat is going to eat the disc. (Reference to an episode The Simpsons.) The disc is sealed. The end. I don't know of any fungus so acidic that it eats plastic. |
1 The materials of a DVD + R are propitious to the development of fungus?
2 The disc is sealed but the fungus can attack out of the disk and then penetrate it 3 What was all degradation problems in medias DVD you've ever seen? you've seen fungus on DVD? I've seen DVD discs with dark spots on the bottom and transparent holes |
As stated, DVD+RW often develop craters in the dye, and DVD-R/DVD+R have rainbowing due to bonding (glue) issues.
Without seeing the disc, and not having a disc expert look at it, speculation is pointless. |
1 The materials of a DVD + R are propitious to the development of fungus?
2 The disc is sealed but the fungus can attack out of the disk and then penetrate it 3 What was all degradation problems in medias DVD you've ever seen? you've seen fungus on DVD? I've seen DVD discs with dark spots on the bottom and transparent holes my disc is DVD+R |
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fungus can not eat plastic
and unless the disk is physically damaged fungus cant get inside of it. disks can be damage from being left in the sun, using improper chemicals to clean them, spilling chemicals on them etc |
1 I'm told it has a fungus with the name Geotrichum eating Polycarbonate
2 If fungus does not attack medias DVD so what are the problems of degradation of the media? |
Fungus could be hard issue, if it generaly does progress. I believe you will see black spots, when happens.
I suggest to keep clean hands when handling it. |
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1 I always wash my hands before handling the medias, I possess few DVDs with dark spots but do not know if it is fungus but these discs are still functioning
2 My friend has discs with transparent dots that increase over time and do not know what is Here are some pictures of discs: http://i797.photobucket.com/albums/y...ampleBelow.jpg http://upload.wikimedia.org/wikipedi...4/Disc_rot.jpg http://www.lifetimememoriesandstorie.../disc_rot2.jpg |
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If these pictures are of fungi on DVDs then this DVD was put on a drive the drive was contaminated and contaminated all DVD discs that were placed on that drive?
I'm worried about it |
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1. Fungus always progresses. 2. It's not black spots. In fact, I can't think of anything that would cause black spots on DVD+R. Maybe DVD+RW and BD-R (craters). 3. Handling isn't the issue -- storage is. Quote:
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Because none of the photos are fungus. See my next post. Quote:
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http://www.digitalfaq.com/forum/imag...pleBelow-1.jpg
http://www.digitalfaq.com/forum/imag...Disc_rot-1.jpg http://www.digitalfaq.com/forum/imag...isc_rot2-1.jpg This topic annoys me, because people say things without knowing what's going on. First off, there is no "DVD rot". That's a stupid myth, based on something that happened to pressed Laserdiscs in the 90s, thanks to cheap (inferior!) aluminum. It has no translation to CD or DVD. Nothing "rots". This isn't fruit in your refrigerator or on your cabinet. The images show 3 things, NONE of them are fungus. 1. That's a pressed CD, with a pinhole in the foil. This is often manufacturing defect (CHEAPSKATES!) when the area was too thin. Over time, it developed a hole. The disc may skip on that area. 2. This is a DVD-R, and that's a defect in the dye. It's always been there, from before it was burned. It's a bad disc, toss it. 3. Again, pressed CD, and the top lacquer and foil have been damaged -- likely from improper storage. Stop looking at random photos of bad discs on Google. :hmm: |
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