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General discussion

please help about convertin files

by bugmenot25 Nov 9, 2006 3:55PM PST

I have 3 audibooks. They were at .wma format. And I have converted all of them to mp4 to ,listen it with my ipod, by same way. First I use one program to convert to mp3. Then I use itunes to conver m4b. Lets say the books are A,B,C.
all is 32kbps
A is 100MB wma 7 Hours 10 Minutes
B is 110MB wma 7 Hours 52 Minutes
C is 173MB wma 12 Hours 23 Minutes
D is 57 MB wma 4 Hours 3 Minutes
its logical if I compare durations and file sizes.
after I converted. Durations remain same. but the sizes are different.
A is 49.1 MB m4b 64kbps
B is 221.5MB m4b 64kbps
C is 348.8MB m4b 64kbps
D is 114.6MB m4b 64kbps

and if I compare durations and the file sizes looks too different. So what is the difference between my audiobooks. where do I make wrong that they are coming up with pretty different sizes

Discussion is locked

3 Posts

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(NT) I wouldn't mind if they sound well.

by Kees Bakker Nov 9, 2006 4:50PM PST

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Could you be working too hard?

by r. proffitt Forum moderator Nov 9, 2006 9:11PM PST

Here's why. If said content will land and be used on the iPod then it will convert one more time to it's native format. And the sizes do change. I don't see anything wrong here.

Bob

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its not logical after the second conversion.

by bugmenot25 Nov 12, 2006 5:38AM PST

After second conversion
A is 49.1 MB m4b 64kbps with 7 Hours 10 Minutes
B is 221.5MB m4b 64kbps with 7 Hours 52 Minutes
C is 348.8MB m4b 64kbps with 12 Hours 23 Minutes
D is 114.6MB m4b 64kbps with 4 Hours 3 Minutes

it seems pretty different isnt it?

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