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Re: Mpeg files to DVD -- pixelated?

 
 
booser
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      10-06-2004
"J Belly" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Hi all:
>
> Newbie here. I converted multiple mpeg files to play on my DVD
> player by using TMPGEnc Author. Process worked fine (even though I
> ignored a "Video GOP is too long" message), but when I tested the
> result on PowerDVD, I saw that the video ended up being too pixelated
> (lots of "small squares" over the pictures). Is there any way (maybe
> another software?) to improve the quality?
>
> Don't know if it matters, but here are the tech specs that Author
> showed after I added one of the files:
>
> MPEG-1, 352x240, 29.97 fps (4:3) NTSC
> MPEG-1 Audio Layer-2, 48000 Hz Stereo, 128 kbps (Monolingual)


Use a higher resolution and a higher bitrate. Source should be atleast
720x480 before conversion and you should not scale the image down (the
encoder should be smart enough to throw out information you don't need and
scaling simply compresses the pixels). For a DVD, 6000 kbps 2 hour film
will about fill out the entire space.


 
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Bill in Co.
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      10-06-2004
booser wrote:
> "J Belly" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)...
>> Hi all:
>>
>> Newbie here. I converted multiple mpeg files to play on my DVD
>> player by using TMPGEnc Author. Process worked fine (even though I
>> ignored a "Video GOP is too long" message), but when I tested the
>> result on PowerDVD, I saw that the video ended up being too pixelated
>> (lots of "small squares" over the pictures). Is there any way (maybe
>> another software?) to improve the quality?
>>
>> Don't know if it matters, but here are the tech specs that Author
>> showed after I added one of the files:
>>
>> MPEG-1, 352x240, 29.97 fps (4:3) NTSC
>> MPEG-1 Audio Layer-2, 48000 Hz Stereo, 128 kbps (Monolingual)

>
> Use a higher resolution and a higher bitrate. Source should be atleast
> 720x480 before conversion and you should not scale the image down (the
> encoder should be smart enough to throw out information you don't need and
> scaling simply compresses the pixels). For a DVD, 6000 kbps 2 hour film
> will about fill out the entire space.


I think it's more like 4000 kbps.


 
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booser
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      10-07-2004
"Bill in Co." <(E-Mail Removed)> wrote in message
news:AnI8d.3846$(E-Mail Removed) ink.net...
> booser wrote:
> > "J Belly" <(E-Mail Removed)> wrote in message
> > news:(E-Mail Removed)...
> >> Hi all:
> >>
> >> Newbie here. I converted multiple mpeg files to play on my DVD
> >> player by using TMPGEnc Author. Process worked fine (even though I
> >> ignored a "Video GOP is too long" message), but when I tested the
> >> result on PowerDVD, I saw that the video ended up being too pixelated
> >> (lots of "small squares" over the pictures). Is there any way (maybe
> >> another software?) to improve the quality?
> >>
> >> Don't know if it matters, but here are the tech specs that Author
> >> showed after I added one of the files:
> >>
> >> MPEG-1, 352x240, 29.97 fps (4:3) NTSC
> >> MPEG-1 Audio Layer-2, 48000 Hz Stereo, 128 kbps (Monolingual)

> >
> > Use a higher resolution and a higher bitrate. Source should be atleast
> > 720x480 before conversion and you should not scale the image down (the
> > encoder should be smart enough to throw out information you don't need

and
> > scaling simply compresses the pixels). For a DVD, 6000 kbps 2 hour film
> > will about fill out the entire space.

>
> I think it's more like 4000 kbps.


(4700000000 bytes (approximate) / (120 minutes * 60 seconds per
minute))/1024 bytes per kilobytes * 8 bits per bytes = 5099.8

So ha. 5099.8 (ignoring audio) is closer to 6000 than to 4000.


 
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Robin Banks
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      10-07-2004
On Thu, 07 Oct 2004 01:25:21 GMT, "booser" <(E-Mail Removed)> wrote:

> So ha. 5099.8 (ignoring audio) is closer to 6000 than to 4000.


I guess that's fine if your figuring for silent movies then. <laugh>

Add in the audio (which you have to do in order to be reasonable)... bet it
gets closer to 4000 than 6000.


~~R.Banks
 
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Bill in Co.
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Posts: n/a
 
      10-07-2004
booser wrote:
> "Bill in Co." <(E-Mail Removed)> wrote in message
> news:AnI8d.3846$(E-Mail Removed) ink.net...
>> booser wrote:
>>> "J Belly" <(E-Mail Removed)> wrote in message
>>> news:(E-Mail Removed)...
>>>> Hi all:
>>>>
>>>> Newbie here. I converted multiple mpeg files to play on my DVD
>>>> player by using TMPGEnc Author. Process worked fine (even though I
>>>> ignored a "Video GOP is too long" message), but when I tested the
>>>> result on PowerDVD, I saw that the video ended up being too pixelated
>>>> (lots of "small squares" over the pictures). Is there any way (maybe
>>>> another software?) to improve the quality?
>>>>
>>>> Don't know if it matters, but here are the tech specs that Author
>>>> showed after I added one of the files:
>>>>
>>>> MPEG-1, 352x240, 29.97 fps (4:3) NTSC
>>>> MPEG-1 Audio Layer-2, 48000 Hz Stereo, 128 kbps (Monolingual)
>>>
>>> Use a higher resolution and a higher bitrate. Source should be atleast
>>> 720x480 before conversion and you should not scale the image down (the
>>> encoder should be smart enough to throw out information you don't need

and
>>> scaling simply compresses the pixels). For a DVD, 6000 kbps 2 hour film
>>> will about fill out the entire space.

>>
>> I think it's more like 4000 kbps.

>
> (4700000000 bytes (approximate) / (120 minutes * 60 seconds per
> minute))/1024 bytes per kilobytes * 8 bits per bytes = 5099.8
>
> So ha. 5099.8 (ignoring audio) is closer to 6000 than to 4000.


Well let's see, that 5099 is about 5100, less audio. Throw in the audio,
and it is LESS than 5000! (Closer to 4000 than 6000). So ha. You
lose!


 
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Bill in Co.
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Posts: n/a
 
      10-07-2004
Robin Banks wrote:
> On Thu, 07 Oct 2004 01:25:21 GMT, "booser" <(E-Mail Removed)>

wrote:
>
>> So ha. 5099.8 (ignoring audio) is closer to 6000 than to 4000.

>
> I guess that's fine if your figuring for silent movies then. <laugh>
>
> Add in the audio (which you have to do in order to be reasonable)... bet

it
> gets closer to 4000 than 6000.
>
>
> ~~R.Banks


Yup. And 5099 is essentially 5100 anyway. The net result is closer to
4000 than 6000.


 
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booser
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      10-07-2004
"Bill in Co." <(E-Mail Removed)> wrote in message
news:gg19d.7956$(E-Mail Removed) ink.net...
> booser wrote:
> > "Bill in Co." <(E-Mail Removed)> wrote in message
> > news:AnI8d.3846$(E-Mail Removed) ink.net...
> >> booser wrote:
> >>> "J Belly" <(E-Mail Removed)> wrote in message
> >>> news:(E-Mail Removed)...
> >>>> Hi all:
> >>>>
> >>>> Newbie here. I converted multiple mpeg files to play on my DVD
> >>>> player by using TMPGEnc Author. Process worked fine (even though I
> >>>> ignored a "Video GOP is too long" message), but when I tested the
> >>>> result on PowerDVD, I saw that the video ended up being too pixelated
> >>>> (lots of "small squares" over the pictures). Is there any way (maybe
> >>>> another software?) to improve the quality?
> >>>>
> >>>> Don't know if it matters, but here are the tech specs that Author
> >>>> showed after I added one of the files:
> >>>>
> >>>> MPEG-1, 352x240, 29.97 fps (4:3) NTSC
> >>>> MPEG-1 Audio Layer-2, 48000 Hz Stereo, 128 kbps (Monolingual)
> >>>
> >>> Use a higher resolution and a higher bitrate. Source should be

atleast
> >>> 720x480 before conversion and you should not scale the image down (the
> >>> encoder should be smart enough to throw out information you don't need

> and
> >>> scaling simply compresses the pixels). For a DVD, 6000 kbps 2 hour

film
> >>> will about fill out the entire space.
> >>
> >> I think it's more like 4000 kbps.

> >
> > (4700000000 bytes (approximate) / (120 minutes * 60 seconds per
> > minute))/1024 bytes per kilobytes * 8 bits per bytes = 5099.8
> >
> > So ha. 5099.8 (ignoring audio) is closer to 6000 than to 4000.

>
> Well let's see, that 5099 is about 5100, less audio. Throw in the audio,
> and it is LESS than 5000! (Closer to 4000 than 6000). So ha. You
> lose!


Use the "real" value of 4.7 gigabytes (5046586572.8 bytes or
4.7*1024*1048576) and it comes to 5475.8 kbps. Use 384 kbps as the audio
and I'm still closer. Ha again.


 
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Bill in Co.
Guest
Posts: n/a
 
      10-07-2004
booser wrote:
> "Bill in Co." <(E-Mail Removed)> wrote in message
> news:gg19d.7956$(E-Mail Removed) ink.net...
>> booser wrote:
>>> "Bill in Co." <(E-Mail Removed)> wrote in message
>>> news:AnI8d.3846$(E-Mail Removed) ink.net...
>>>> booser wrote:
>>>>> "J Belly" <(E-Mail Removed)> wrote in message
>>>>> news:(E-Mail Removed)...
>>>>>> Hi all:
>>>>>>
>>>>>> Newbie here. I converted multiple mpeg files to play on my DVD
>>>>>> player by using TMPGEnc Author. Process worked fine (even though I
>>>>>> ignored a "Video GOP is too long" message), but when I tested the
>>>>>> result on PowerDVD, I saw that the video ended up being too pixelated
>>>>>> (lots of "small squares" over the pictures). Is there any way (maybe
>>>>>> another software?) to improve the quality?
>>>>>>
>>>>>> Don't know if it matters, but here are the tech specs that Author
>>>>>> showed after I added one of the files:
>>>>>>
>>>>>> MPEG-1, 352x240, 29.97 fps (4:3) NTSC
>>>>>> MPEG-1 Audio Layer-2, 48000 Hz Stereo, 128 kbps (Monolingual)
>>>>>
>>>>> Use a higher resolution and a higher bitrate. Source should be

atleast
>>>>> 720x480 before conversion and you should not scale the image down (the
>>>>> encoder should be smart enough to throw out information you don't need

and
>>>>> scaling simply compresses the pixels). For a DVD, 6000 kbps 2 hour

film
>>>>> will about fill out the entire space.
>>>>
>>>> I think it's more like 4000 kbps.
>>>
>>> (4700000000 bytes (approximate) / (120 minutes * 60 seconds per
>>> minute))/1024 bytes per kilobytes * 8 bits per bytes = 5099.8
>>>
>>> So ha. 5099.8 (ignoring audio) is closer to 6000 than to 4000.

>>
>> Well let's see, that 5099 is about 5100, less audio. Throw in the

audio,
>> and it is LESS than 5000! (Closer to 4000 than 6000). So ha. You
>> lose!

>
> Use the "real" value of 4.7 gigabytes (5046586572.8 bytes or
> 4.7*1024*1048576) and it comes to 5475.8 kbps. Use 384 kbps as the audio
> and I'm still closer. Ha again.


Nope. The real byte value of the DVD capacity is about 4.3 GB, NOT 4.7
GB. Your math was right the first time.


 
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booser
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      10-07-2004
"Bill in Co." <(E-Mail Removed)> wrote in message
news:FV39d.8208$(E-Mail Removed) ink.net...
> booser wrote:
> > "Bill in Co." <(E-Mail Removed)> wrote in message
> > news:gg19d.7956$(E-Mail Removed) ink.net...
> >> booser wrote:
> >>> "Bill in Co." <(E-Mail Removed)> wrote in message
> >>> news:AnI8d.3846$(E-Mail Removed) ink.net...
> >>>> booser wrote:
> >>>>> "J Belly" <(E-Mail Removed)> wrote in message
> >>>>> news:(E-Mail Removed)...
> >>>>>> Hi all:
> >>>>>>
> >>>>>> Newbie here. I converted multiple mpeg files to play on my DVD
> >>>>>> player by using TMPGEnc Author. Process worked fine (even though I
> >>>>>> ignored a "Video GOP is too long" message), but when I tested the
> >>>>>> result on PowerDVD, I saw that the video ended up being too

pixelated
> >>>>>> (lots of "small squares" over the pictures). Is there any way

(maybe
> >>>>>> another software?) to improve the quality?
> >>>>>>
> >>>>>> Don't know if it matters, but here are the tech specs that Author
> >>>>>> showed after I added one of the files:
> >>>>>>
> >>>>>> MPEG-1, 352x240, 29.97 fps (4:3) NTSC
> >>>>>> MPEG-1 Audio Layer-2, 48000 Hz Stereo, 128 kbps (Monolingual)
> >>>>>
> >>>>> Use a higher resolution and a higher bitrate. Source should be

> atleast
> >>>>> 720x480 before conversion and you should not scale the image down

(the
> >>>>> encoder should be smart enough to throw out information you don't

need
> and
> >>>>> scaling simply compresses the pixels). For a DVD, 6000 kbps 2 hour

> film
> >>>>> will about fill out the entire space.
> >>>>
> >>>> I think it's more like 4000 kbps.
> >>>
> >>> (4700000000 bytes (approximate) / (120 minutes * 60 seconds per
> >>> minute))/1024 bytes per kilobytes * 8 bits per bytes = 5099.8
> >>>
> >>> So ha. 5099.8 (ignoring audio) is closer to 6000 than to 4000.
> >>
> >> Well let's see, that 5099 is about 5100, less audio. Throw in the

> audio,
> >> and it is LESS than 5000! (Closer to 4000 than 6000). So ha.

You
> >> lose!

> >
> > Use the "real" value of 4.7 gigabytes (5046586572.8 bytes or
> > 4.7*1024*1048576) and it comes to 5475.8 kbps. Use 384 kbps as the

audio
> > and I'm still closer. Ha again.

>
> Nope. The real byte value of the DVD capacity is about 4.3 GB, NOT 4.7
> GB. Your math was right the first time.


The real value they claim, not the real value that it should be. Should be
some type of digital accuracy law where you can only mark devices and dvds
by the capacity based on 1024 instead of 1000.


 
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