Looking For Dual Layer DVD Replication Info?Standard DVD replication is limited by the amount of space a standard DVD can hold. This number is usually 4.7 gigabytes, which is no longer satisfactory for some of today's larger files. Dual layer DVD replication helps solve this problem by offering up to nearly twice that amount, 8.5 gigabytes to be exact. Dual layer DVDs work by using a second physical layer within the disc itself, a drive with is dual layer capable then shines its laser through the first layer in order to read the second. Dual layer DVD replication offers a lot to those who regularly engage in DVD authoring and reproduction. It can be used to transfer multiple videos from VHS tapes to a single dual layer DVD. A graphic designer or independent film director may want to store samples of his or her work on a dual layer DVD to demonstrate his or her abilities in place of leaving a traditional business card. Dual layer DVD replication can also be a cheaper alternative to expensive high definition DVDs and DVD burners which are not yet widely supported by computers or consumer DVD players. If you already currently employ dual layer DVD replication and are concerned about "pauses" in video playback from dual layer DVDs, do not worry. The changeover from the first layer to the second is not instantaneous as much as we would like it to be. Manufacturers and studios have now begun to place labels on dual layer DVDs warning customers about the pause and to not worry. There are currently two types of dual layer orientation. Parallel track path (or PTP) is used on DVD-ROM. In PTP both layers start at the inside diameter (ID) and end at the outside diameter (OD). The opposite track path (or OTP) is used for DVD-Video. In OTP, the lower layer starts at the ID and the upper layer starts at the OD, where the other layer ends, they both share one lead-in and one lead-out. Dual layer DVD replication is now nearly as economical as traditional single layer technology. In fact most dual layer DVD burners now cost the same as single layer models. Dual layer DVD media is, however, still somewhat more expensive than regular blank DVD discs. The time and space saved by employing this technology can more than make up for this though. Consider researching various dual layer brands which offer devices for dual layer DVD replication before making your purchase. |