[access-uk] Re: ISO and audio
- From: Jonathan H <digitaltoast@xxxxxxxxx>
- To: access-uk@xxxxxxxxxxxxx
- Date: Tue, 22 Jan 2013 22:12:19 +0000
Don't forget that it's not whether it's mp4 or mkv or ISO or mov; they
are all what is called "containers", all of which allow various types
of files to be contained. mp4 usually contained an h.264 mp4 file, an
ISO is just a way of wrapping up dvd information and usually contains
dvd VOB files.
Personally, I'd choose either mp4 or mkv, and stay well away from mov
and definitely don't even think of wav as an audio format!
It's complete insanity, and a bad idea for a hundred reasons! either
use the original dolby digital ac3 or dts audio, or encode to aac
which is what is usually the soundtrack for an mp4 file.
Here's a snippet from a discussion of mp4 vs mkv which will probably
serve to confuse even more!
mp4 is a container just like mkv, the video inside is mp4 in the mp4
(usually h.264) and every mkv that I see has mp4 (h.264) video inside
it.
Mkv can have a variety of video formats inside, but I always see h.264
which is iOS compatible. Therefore I use subler, MKVtools, or iflicks
to put the video and audio of the mkv into a mp4 container. It only
takes 10 minute on a core2duo 2ghz Mac mini. there is no loss of
quality.
On Tue, Jan 22, 2013 at 9:19 PM, Mobeen Iqbal <mobeeniqbal@xxxxxxxxx> wrote:
> Hi BJ.
>
> A lot of people tend to use MP4 it provides excellent image quality and
> sound, and doesn't seem to compress too much. you could always try
> experimenting and seeing which one is best for you? also depends what
> programs you use to do the rip and what options you select. the higher the
> MBPS for example the better your quality's going to be.
>
> Mo.
>
>
>
> On 22/01/2013 21:17, BJ Edwards wrote:
>>
>> Ok, so my music is currently either CD or 320kps MP3 which is the
>> highest quality I can get without WAV.. My movies are either watched
>> straight from the disk on very good headphones or watched on a HD TV
>> with 5.1 DTS sound. So, if I want to watch the DVDs from a file, which
>> would provide the best quality, MP4, MOV, FMV, AVI...? which
>> compresses the least? I assume that ISO is the best, so I am seeking
>> second best for sake of argument.
>>
>> Very many thanks again!
>>
>> BJ
>>
>> On 22/01/2013, Mobeen Iqbal<mobeeniqbal@xxxxxxxxx> wrote:
>>>
>>> hi andy. fair enough, i suppose i was just curious if quality does
>>> improve as i can't really tell, but maybe as i said it depends on the
>>> audio systems i'm using. i've never spent over the odds on one having
>>> never had the cash to burn or seen the point.
>>>
>>> all the best,
>>>
>>> Mo.
>>>
>>>
>>> On 22/01/2013 21:00, ANDY COLLINS wrote:
>>>>
>>>> Hi Mo -
>>>>
>>>> I think the 128 bit rate is used as a bench mark for putting music on
>>>> portable devices, from the days when capacity was more of an issue -
>>>>
>>>> Andy
>>>> ----- Original Message ----- From: "Mobeen Iqbal"<mobeeniqbal@xxxxxxxxx>
>>>> To:<access-uk@xxxxxxxxxxxxx>
>>>> Sent: Tuesday, January 22, 2013 8:50 PM
>>>> Subject: [access-uk] Re: ISO and audio
>>>>
>>>>
>>>>> Hi Andy.
>>>>>
>>>>> Yep, it may well be i'm not sure to be perfectly honest, cd rippers
>>>>> i've used say that 128 K is the best quality to rip for cd's, but
>>>>> they them selves could be wrong and when trying higher bitrates i
>>>>> can't say i noticed a difference. then again i didn't have headphones
>>>>> worth Ł200!
>>>>>
>>>>> Mo.
>>>>>
>>>>>
>>>>> On 22/01/2013 20:44, ANDY COLLINS wrote:
>>>>>>
>>>>>> Hi Mo -
>>>>>>
>>>>>> I thought CD quality was considerably higher than 128, more like 256
>>>>>> or even 320? I think stereo music radio only broadcasts in 128 -
>>>>>>
>>>>>> Andy
>>>>>> ----- Original Message ----- From: "Mobeen Iqbal"
>>>>>> <mobeeniqbal@xxxxxxxxx>
>>>>>> To:<access-uk@xxxxxxxxxxxxx>
>>>>>> Sent: Tuesday, January 22, 2013 8:22 PM
>>>>>> Subject: [access-uk] Re: ISO and audio
>>>>>>
>>>>>>
>>>>>>> Hi. Even when you convert to avi, the audio is generally encoded in
>>>>>>> Ac3 format at 256 KBPS. 128KBPS is CD quality so you're already
>>>>>>> talking HD quality ready for you to extract as MP3 at 256K or 320K
>>>>>>> or whatever. personally i can't tell the difference beyond 128K,
>>>>>>> maybe there's something wrong with me lol.
>>>>>>>
>>>>>>> Mo.
>>>>>>>
>>>>>>>
>>>>>>> On 22/01/2013 20:20, BJ Edwards wrote:
>>>>>>>>
>>>>>>>> Hi, I see. I assume compressed AVI files are of a similar quality to
>>>>>>>> MP3 files. I was talking about uncompressed sound... WAV for
>>>>>>>> example.
>>>>>>>>
>>>>>>>> bJ
>>>>>>>>
>>>>>>>> On 22/01/2013, Mobeen Iqbal<mobeeniqbal@xxxxxxxxx> wrote:
>>>>>>>>>
>>>>>>>>> Hi BJ.
>>>>>>>>>
>>>>>>>>> what do you mean by proper audio? DVD audio extractor can extract
>>>>>>>>> to
>>>>>>>>> MP3, it depends what kind of an audio purest you are. i mean,
>>>>>>>>> obviously
>>>>>>>>> Wav files could take up tons of space, you have to watch out that
>>>>>>>>> you
>>>>>>>>> don't run out of space on your hard drive. Also, when extracting
>>>>>>>>> audio
>>>>>>>>> from a dvd, you have to extract audio from all the titles or at
>>>>>>>>> least
>>>>>>>>> play them back to make sure you're extracting the english title.
>>>>>>>>> otherwise you end up with other language titles as well. choices
>>>>>>>>> choices, i'm sure you'll get there in the end eventually!
>>>>>>>>>
>>>>>>>>> Mo.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On 22/01/2013 15:27, BJ Edwards wrote:
>>>>>>>>>>
>>>>>>>>>> Hi,
>>>>>>>>>>
>>>>>>>>>> So, in my eutopian fantasy I have all my movies on one lovely hard
>>>>>>>>>> drive that I can plug into a media centre and watch on a decent
>>>>>>>>>> system. But, can you get the audio track of your choice from an
>>>>>>>>>> ISO
>>>>>>>>>> file or DVD and save it as a file without loosing quality and
>>>>>>>>>> listen
>>>>>>>>>> on a portable device? sorry, rather rambling. I don't want MP3
>>>>>>>>>> compression, I want "proper" audio. Can this be done?
>>>>>>>>>>
>>>>>>>>>> Thanks!
>>>>>>>>>>
>>>>>>>>>> BJ
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