In the General Faq: How can I use Acronis True Image 8.0 to write the images directly to DVD disks? This statement is somewhat puzzling to me and I would like a clarification. As a preface, a single side-single layer 12cm DVD is usually listed as having a 4.7 GB capacity. However, this capacity represents a decimal rather than a binary capacity. In other words the capacity is 4,700,000,000 bytes rather than 5,046,586,573 ( 1,073,741,824 X 4.7 ). As such, a binary file size can theoretically be no larger than 4.38 GB ( 4,700,000,000 / 1,073,741,824 ) to fit on this type of DVD. Accordingly, 4.38GB image as a single file would just fit. It would seem that it is unnecssary to specify a fixed file size to break up a single image into several files, if the entire image is no greater that 4.38 GB and is to be written to this type of DVD. If the image were of a greater size than this, it could be somewhat more efficiently written over several disks using a file size of 4096MB ( 4 GB or 4,294,967,296 bytes ). If you are imaging a FTA32 system, selecting 'Automatic' for Archive Splitting, will automatically produce files of 4096MB. You could be even more efficient (in packing data onto a DVD) if a file size of 1490MB were used. In this case, three files each of size 1490MB would produce a total byte count of 4,687,134,720 ( 1,048,576 X 1490 X 3), thus packing more data on the disk while remaining within the capacity limit. However, while producing a better total byte count, the proliferation of files could result in greater disk switching during restore. ( The seemingly most efficient file size would be 1494MB [4,699,717,632 bytes], if you ignore any space for admin type info). With current 4.7GB DVD's, a 2000MB file size would be even less efficient that the 4096MB file size mentioned above. For example: 1,048,576 X 2000 X 2 = 4,194,304,000 This file size would produce a total byte count less than the 4096MB file size and would limit the number of files on the DVD to 2. Any greater number of files would exceed the DVD capacity. Is the 2000MB file size an old specification, maybe referring to an old 8cm disk with a capacity of 2.92GB, or is there some other reason for this comment?