Who can tell me what Is a " double layer disc " ?
540691
Traditionally, DVD's come with one 'working' layer i.e. the layer which stores the data. The other layer is blank and cannot be burnt to store data. This layer is used for labeling.\n\nNew Age DVD's, however, have two working layers. This means that one not only can store data on one layer, also on the reverse layer. In effect, if the single layer DVD can accommodate say 4.7GB,then a double (or dual) layer DVD will store 4.7 + 4.7 = 9.4 GB data.\n\nIn order to play the same, one needs a player to support dual layer disks (dual layer disks are heavier and need different hardware). Similarly one needs a dual layer disk recorder / writer to burn Dual Layer Disks.\n\nHope one finds this information useful.
778666
I can make duplicates of my Linux DVDs, and, if I have a movie that the children want to watch, I can make a copy that they can destroy, like children usually do.\n\nAll software should be duplicated, and the original stored in a safe place, the 'daughter' disc placed in the open storage stack, and the other 'daughter' disc can be used and abused, until worn out from handling...\n\nSo, to do all of that, I like two DVD optical drives, one reader, one writer, or dual writers.  And, in Linux, I can burn, surf, run a program, run frostwire, play music all at the same time, on some of the 20 desktops on my 1 Ghz unit!
23845
The easiest way is to use something like DVD Shrink which will rip and then compress Dual Layer (DVD-9, 8.6GB) discs to a Single Layer DVD. \n\nOtherwise the best quality way is to use DVD Decrypter and then DVD Rebuilder.
609082
Could be the fact that disc you used was faulty
289615
It is recorded from the center of the disc out. A laser etches data into a thin layer located on the top of the cd. This layer is usually coverd by paint or plastic. check out the link to learn cool stuff
1159793
Basically it’s the same as the other discs. There are small gaps on the surface. The difference between the plastic and the CD is that plastic discs are read with needles and CDs with laser.
70059
A CD is a fairly simple piece of plastic, about four one-hundredths (4/100) of an inch (1.2 mm) thick. Most of a CD consists of an injection-molded piece of clear polycarbonate plastic. During manufacturing, this plastic is impressed with microscopic bumps arranged as a single, continuous, extremely long spiral track of data. We'll return to the bumps in a moment. Once the clear piece of polycarbonate is formed, a thin, reflective aluminum layer is sputtered onto the disc, covering the bumps. Then a thin acrylic layer is sprayed over the aluminum to protect it. The label is then printed onto the acrylic.\n\nhttp://electronics.howstuffworks.com/cd.htm\n\nThe CD-ROM (an abbreviation for "Compact Disc Read-Only Memory") is a non-volatile optical data storage medium using the same physical format as audio CDs, readable by a computer with a CD-ROM drive. A CD-ROM is a flat, metallized plastic disc with digital information encoded on it in a spiral from the center to the outside edge. The CD-ROM Yellow Book standard was established in 1985 by Sony and Philips. Microsoft and Apple Computer were early enthusiasts and promoters of the CD-ROM. John Sculley, CEO of Apple at the time, said as early as 1987 that the CD-ROM would revolutionize the use of personal computers.\n\n \nCD-RCD-ROM reading devices are a standard component of most modern personal computers. In general, audio CDs are distinct from CD-ROMs, and CD players intended for listening to audio cannot make sense of the data on a CD-ROM; though personal computers can generally read audio CDs. It is possible to produce composite CDs containing both data and audio with the latter capable of being played on a CD player, whilst data or perhaps video can be viewed on a computer. These are called Enhanced CDs.\n\nFor more information, click here:\n\nhttp://en.wikipedia.org/wiki/CD-ROM
1177056
This one is an excellent buy at $38 and supports dual-layer discs, http://www.newegg.com/Product/Product.asp?Item=N82E16827106013 and it comes with Nero and PowerDVD.
432201
Yes, this denotes the speed that the disk will read/write at.  The number (n)x is how many times faster than normal playback speed.  The higher the number, the faster disks will burn for you.  When possible, go with the higher number.  \n\nI would recommend getting a DVD burner because it will allow you to burn both CDs and DVDs.  Also, when purchasing a DVD burner, look for one that supports DVD+/-r (two different DVD media formats) and Dual Layer (another DVD format that allows you to fit double the amount of data on 1 disk)
401807
They actually make wierd plastic things you can put on the bottom of discs to keep them from scratching. Go to Best Buy and ask about those.
804232
A standard CD is 120 mm (4.75 inches) in diameter and 1.2 mm (0.05 inches) thick. It is composed of a clear polycarbonate plastic substrate, a reflective metallic layer, and a clear protective coating of acrylic plastic. The reflective metallic layer is where audio data is read in the form of minuscule (as short as 0.83 micrometre) depressions (pits) and contrasting flat regions (lands).
263794
Regular DVDROM drives will not read Dual-layers.\nAnd MOST home DVD players will not read Dual-layers (yet). Some of the newer ones do, there is not a logo that I know of. Just read your manual or look up the model number of your DVD player online and find out that way.
293352
Your question is flawed...\n\nThe drive spins the disc faster while reading on the outer area, and slows down as it gets closer to the inner area.\n\nIt's not like an old record player where there is one constant speed.
384317
this should help you\nhttp://forums.afterdawn.com/thread_view.cfm/105641\n\nthis entire forum is about dvds\nhttp://forums.afterdawn.com/
159295
Current CD-ROM players use an invisible-light infrared laser with a wavelength of 780 nanometers.\n\nHowever, as another poster mentioned, this varies especially in RW drives.
355175
Yes there is a way around this. A wonderful program called AnyDVD. It decrypts dvd's, but it also does the same for cd's. I would recommend the whole suite of their prodcuts (anydvd, clone cd, clone dvd). You can check it out at http://www.slysoft.com/en/anydvd.html It's bs that artists are doing this now, especially since we'll always find a way around it. Good luck
473426
The dvd may be in a dual-layer format, in which there are two layers of data, only some drives can read and/or burn them.