DVDfab mp4 won't play on ipod

vbimport

#1

I used the lateset version of DVDfab mobile to convert a DVD to ipod. The process worked and the mp4 file plays just fine with Apples quicktime player.

I dropped the mp4 into my itunes library, but when I try to sync it to my video ipod, I get a message saying that it’s not a valid video format for my ipod.

So, in itunes I right clicked on the mp4 file and selected: “convert to ipod format”. The itunes conversion is still running right now and has been runnig for over 3 hours :frowning:

I called Apple, they said the mp4 file is not in AAC format. I asked them: when the file is done converting what file extenison will it have, he said .mp4

I am confused, so there are different types of mp4 files?
Is there a way to have DVDfab output a AAC formated mp4 file that will play on my ipod without having itunes have to convert it?

When I converted the DVD in DVDfab, I selected convert to ipod. Did I miss some settings?

Thanks for any help…


#2

There are several different iPod profiles, selectable with the Profile drop down selector on the Conversion Settings page, but they ALL use the AAC audio codec. Try a different profile or perhaps change the bitrate or screen resolution to something smaller. You may be encoding at too high a bitrate for your iPod.


#3

Hi Tacoma,

I’m still at work…again…:sad:, but this sounds like a simple issue (hopefully).
Could you post a screenshot of your configuration settings for the conversions?
Are you using [B]ipod.mpeg4[/B] or [B]ipod.h264[/B]?.

Also, I always use itunes to import the converted files…I never drag and drop. While I own an Ipod and do quite a few conversions, I pretty much never have a problem and just stumble through the process without much knowledge.
Try using itunes to import from the hdd and see if this makes a difference.

[Edit]
OT
Hey pard…didn’t see you there


#4

Hey Maineman,

Attached is an image of my settings in DVDfab and aslo I included a image of what itunes shows for the properties of the mp4. BTW I have a 3rd gen ipod video Nano.

Thanks!!!

[QUOTE=maineman;2099328]Hi Tacoma,

I’m still at work…again…:sad:, but this sounds like a simple issue (hopefully).
Could you post a screenshot of your configuration settings for the conversions?
Are you using [B]ipod.mpeg4[/B] or [B]ipod.h264[/B]?.

Also, I always use itunes to import the converted files…I never drag and drop. While I own an Ipod and do quite a few conversions, I pretty much never have a problem and just stumble through the process without much knowledge.
Try using itunes to import from the hdd and see if this makes a difference.

[Edit]
OT
Hey pard…didn’t see you there[/QUOTE]




#5

@maineman
Just lurking about. :slight_smile:
@tacoma5050
With the Nano I think you should be using one of the H.264+AAC profiles. I would also select a smaller screen size unless you are playing this on something besides the Nano. The files will be smaller and will encode faster. Try 320x240.


#6

Hi again Tacoma,

Your bits/pixel ratio is way off.
Here’s a decent formula for calculating mp4 settings:

(pixel height ÷ 16) X [or times] (pixel width ÷ 16)…the product should be less than 900 macroblocks (230,400 pixels).

Also, increase your fixed bitrate…I usually shoot for about 1700-1800 kbps with good results, for both Ipod or patched from the Ipod to a TV. You can go as high as 2500 kbps, but I wouldn’t push your luck and you’ll pay the price of a substantially larger file size.

I would also recommend an audio bitrate of 128.
I usually turn the volume to 300% as well for my poor, tired, old ears
Too many hours of Jimi Hendrix in my youth…:bigsmile:

A picture’s worth a 1000 words…here are a couple of screenshots:
(You can see I’ve pushed to the limit of 900 macroblocks)

[Edit]
Hey signals …just noticed you too…:wink:


#7

I’m just catching signals’ comments…sorry I missed that you’re using a nano.
I totally agree with my good friend signals…use the h.264 mode if you’re able. I’m not sure if a 3rd gen nano supports h.264.

You can use the same bits/pixel ratio calculation, but this time the maximum is 300 macroblocks (76,800 pixels).
The native resolution for Ipods is 320x240. I would select this setting as signals suggests.

Hope this helps and let us know…


#8

The ipod video spec listed by apple.
MPEG-4:
Resolution: 640 x 480 max
Video Bit rate: 2500 max
Audio Bit rate: 160 max

H264:
Resolution: 640 x 480 max
Video Bit rate: 1500 max
Audio Bit rate: 160 max

What I find interesting is some of the videos the Apple store sells don’t match these specs and still work on my 5th generation ipod. For example I have a video with resolution 853 x 360.


#9

Hi all,

Thanks for all the help, your sugesstions worked!! Here are the DVDfab settings that worked for my ipod nano:

profile: ipod.h264
res: 480x368
fps: 29.97
vid BR: 750 kbps
audio BR: 96 kbps

That producted a 680meg file from a 100 minute DVD movie. Space is at a premium for me since it’s only a 4gig nano. Also the above ipod.h264 profile produced a file extension of .m4v and that worked on my Nano.

On my first failed attempt the plain ipod profile produced a file extension of .mp4 and that file did not work on my nano.

Maybe the .m4v denotes AAC? which is requiered for ipod.

Thanks !!!


#10

[QUOTE=tacoma5050;2100196]Hi all,

Thanks for all the help, your sugesstions worked!! [/QUOTE]
Hey, that’s great news…congrats!
Glad to hear that the h.264 profile worked on your 3rd gen nano…I wasn’t sure…like I said, I don’t know much about Ipods…I just enjoy 'em…:bigsmile: