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A blank dvd labeled 4.7gb is showing 4488mb in nero! (disk info)
Anyone has any idea? I need to write a 4650mb vdo file in single dvd.
thanks

If you're just transfering the file from one location to another I'd use winrar to archive the file before writing it to DVD. Winrar can achieve some serious compression.

thanks Shroomz. but does your dvd shows the same like mine?

if you have 4650 MB to write that's effectively 4.761.600 KB
sometimes K means 1024, sometimes 1000.

the DVD needs format information plus error correction data, so there's a significant overhead.
if that's a video file you might consider re-encoding it with slightly less resolution (unnoticable)

cheers, tom

Hi,
we get a reading of 4.399mB in Nero & 4.29 in XP sp2.

The manufactors of DVDs calc only with the multiplier 1000 instead of 1024.
So a blanc 4.7GB DVD can only store ~4.49GB.

The error correction datas are stored in a space outside the 4.7GB.

For example a normal CD has a total capacity of 1GB but aprox. a third of it is used for the error correction datas.
Audio uses less error correction datas than Data CDs. That´s why a CD can store 80min of music but only 700MB of computer datas.

4.2 giga available on a Macintosh. No need to cry

error correction data. thats the case
thanks you all