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View Full Version : AVCHD to DVD+R DL 8.5


Chudz
23rd July 2009, 18:13
Hello, I am going to encode my BluRay movie into a AVCHD file to play on my PS3. I want to put it on a DL DVD which says 8.5GB on the case! I was woundering what the exact size would the file have to be to fit onto the Dual Layer DVD?

Atak_Snajpera
23rd July 2009, 21:38
8150 mb

Ghitulescu
24th July 2009, 07:53
That's a little bit less than 8'500'000'000 bytes (8'300'800kB, 8106MB or 7.9GB). It depends how the software does the math, ie using 1024 or 1000 or even a mix of the two. Generally the marketing loves to use 1000 while the software programmers do not conceive to use anything else than 1024 (2^10).

For the software using 1024 I personally use 8100 MB.

Forgot to add something:
muxing to AVCHD needs an overload of about 7% so consider this when encoding the video
you need also to keep a reserve for the structure decriptors, which is not big, but you avoid a new recoding for 2 missing MB :)

Atak_Snajpera
24th July 2009, 09:34
That's a little bit less than 8'500'000'000 bytes (8'300'800kB, 8106MB or 7.9GB).
wrong!
http://en.wikipedia.org/wiki/DVD#DVD_capacity

Ghitulescu
24th July 2009, 12:41
Yes, you're right.
The values are the one I use, since no encoder I know stops exactly at the DVD limit (only in CBR but who uses CBR anyway?). When an h.264 reencoding needs 16h on my computer I won't risk a second one just because of a few MB.
I know there are media that allows overburning but I prefer to be conservative than sorry.

setarip_old
24th July 2009, 18:36
@Chudz

If you load a blank D/L DVD+R and, in Explorer, rightclick on the drive and select "Properties", it will indicate something around 7.96GB or 8,548,000,000 bytes...