why when I have an Mpeg lets 4.6 gigs in size it shows 4.8 in DVD program?
I get this also when I burn folders on to DVDs the folder could say it's 500mb but the program says more. Any answers?
The reason that it might show 4.8 in size as opposed to the file size of 4.6 is probably because it is including the size of the menu and whatever you have in it...I assume you're using DVD Architect?
Because windows is showing you the value based on a base 2 numbering system and DVDA is showing you it base 10.
In computers, 1K is actually 1024, not 1000. So a 4.7GB DVD (which is a base 10 representation), is 4700 x 1K (1000). To windows you only have 4.37GB available.
So if you take 4.6GB as shown by windows, you have 4600 x 1024 which is 4.7GB in base 10. The 4.8GB you are seeing is probably due to rounding, since (for example) 4.65GB would round up to 4.8.
Also be aware that DVDA is not always that accurate on size estimates for projects that involve complex menus (motion menus, animated thumbs, etc.).