Lower Bitrate or use DVDShrink?

[Tony]

Archived from groups: alt.video.dvd.software,alt.video.dvd.tech,rec.video.desktop,rec.video.dvd.tech (More info?)

My gf is going to capture kids VCR tapes onto DVD, they are usually around
one hour, be good to get 3 onto a DVD

To take account of the easier quality source (cartoons, etc) we will encode
at a lower bitrate, but an easier option may be to encode at higher quality
bitrate, then use DVDShrink to make 3 hours fit onto a DVD? A benefit is
that with DBDShrink, we can fil, it up, rather than guessing the bitrate,
especially as soem tapes will be a bit longer or shorter than 60 moinutes
each? Or would it be better to encode lower, allowinmg DVDShrink to compress
less?

Interested (both practically and technically) to hear any comments.

8000 bitrate would give about 70 minutes onto a DVD

 

[Guest]

Archived from groups: alt.video.dvd.software,alt.video.dvd.tech,rec.video.desktop,rec.video.dvd.tech (More info?)

Tony wrote:
> My gf is going to capture kids VCR tapes onto DVD, they are usually around
> one hour, be good to get 3 onto a DVD
>
> To take account of the easier quality source (cartoons, etc) we will encode
> at a lower bitrate, but an easier option may be to encode at higher quality
> bitrate, then use DVDShrink to make 3 hours fit onto a DVD? A benefit is
> that with DBDShrink, we can fil, it up, rather than guessing the bitrate,
> especially as soem tapes will be a bit longer or shorter than 60 moinutes
> each? Or would it be better to encode lower, allowinmg DVDShrink to compress
> less?
>
> Interested (both practically and technically) to hear any comments.
>
> 8000 bitrate would give about 70 minutes onto a DVD
>
>

Being that they are kid's tapes and will have limited use in that the
kids will grow up and stop watching them, you may want to consider
capturing at MPEG-1 352x240 1150kbs. This is part of the DVD standard
and at that resolution and lower bitrate, you can fit 7 hours and 5
minutes on each DVD. It is VCD quality which is roughly the same as
VHS. If you have a good capture card, you should not see much of a
difference at all.

BCA

 

[Guest]

Archived from groups: rec.video.desktop (More info?)

In article <SdxEc.5648$LT3.222729@news.xtra.co.nz>,
tdale@xtra.co.nz says...
> My gf is going to capture kids VCR tapes onto DVD, they are usually around
> one hour, be good to get 3 onto a DVD
>
> To take account of the easier quality source (cartoons, etc) we will encode
> at a lower bitrate, but an easier option may be to encode at higher quality
> bitrate, then use DVDShrink to make 3 hours fit onto a DVD? A benefit is
> that with DBDShrink, we can fil, it up, rather than guessing the bitrate,
> especially as soem tapes will be a bit longer or shorter than 60 moinutes
> each? Or would it be better to encode lower, allowinmg DVDShrink to compress
> less?

Better to capture and compress only once.

> Interested (both practically and technically) to hear any comments.
>
> 8000 bitrate would give about 70 minutes onto a DVD

Capture at 352x480 (half-D1) and convert to MPEG2.
You'll get better quality then MPEG1. Anything over
4000Kbps for the video stream will be over-kill. Also,
make sure you use AC3 audio (256Kbps) instead of raw PCM
(1536Kbps).

If you're using TMPGEnc, you'll need to experiment with
your Motion Search Precision and DC Component Precision
settings to get good quality at the lower bitrates. You
may need to filter or otherwise use noise reduction
(dirty signal requires higher bitrate to avoid
blockiness).

Assuming 256Kbps AC3 audio, here are some bitrates to
use:

4000 - 143 minutes (3 hour long shows minus commercial
breaks, or 6 half-hour shows)

3100 - 181 minutes (4 hour long shows, minus commercial
breaks, or 8 half-hour shows)

2300 - 238 minutes

2000 - 270 minutes

 

[Guest]

Archived from groups: alt.video.dvd.software,alt.video.dvd.tech,rec.video.desktop,rec.video.dvd.tech (More info?)

Tony wrote:

> My gf is going to capture kids VCR tapes onto DVD, they are usually around
> one hour, be good to get 3 onto a DVD
>
> To take account of the easier quality source (cartoons, etc) we will encode
> at a lower bitrate, but an easier option may be to encode at higher quality
> bitrate, then use DVDShrink to make 3 hours fit onto a DVD? A benefit is
> that with DBDShrink, we can fil, it up, rather than guessing the bitrate,
> especially as soem tapes will be a bit longer or shorter than 60 moinutes
> each? Or would it be better to encode lower, allowinmg DVDShrink to compress
> less?
>
> Interested (both practically and technically) to hear any comments.
>
> 8000 bitrate would give about 70 minutes onto a DVD

I would just capture at the higher rate and then use DVD shrink. I've done it a
number of times and it's easier (less hassle) than guestimating bitrates, and
surprisingly enough, it can give better results.

 

[Guest]

Archived from groups: alt.video.dvd.software,alt.video.dvd.tech,rec.video.desktop,rec.video.dvd.tech (More info?)

"Brian C. Allen" <bca-no-spam-please-om@cox.net> wrote in message
news:40E2F2B7.9040104@cox.net...
> Tony wrote:
> > My gf is going to capture kids VCR tapes onto DVD, they are usually
around
> > one hour, be good to get 3 onto a DVD
> >
> > To take account of the easier quality source (cartoons, etc) we will
encode
> > at a lower bitrate, but an easier option may be to encode at higher
quality
> > bitrate, then use DVDShrink to make 3 hours fit onto a DVD? A benefit is
> > that with DBDShrink, we can fil, it up, rather than guessing the
bitrate,
> > especially as soem tapes will be a bit longer or shorter than 60
moinutes
> > each? Or would it be better to encode lower, allowinmg DVDShrink to
compress
> > less?
> >
> > Interested (both practically and technically) to hear any comments.
> >
> > 8000 bitrate would give about 70 minutes onto a DVD
> >
> >
>
> Being that they are kid's tapes and will have limited use in that the
> kids will grow up and stop watching them, you may want to consider
> capturing at MPEG-1 352x240 1150kbs. This is part of the DVD standard
> and at that resolution and lower bitrate, you can fit 7 hours and 5
> minutes on each DVD. It is VCD quality which is roughly the same as
> VHS. If you have a good capture card, you should not see much of a
> difference at all.
>
> BCA
>

If your source is interlaced, I would go with 352x480
MPEG2 VBR set to not lower than 1150 and avg ~2500
max ~4000 that will give you ~6 hrs/DVD.

Luck;
Ken

 

[Guest]

Archived from groups: alt.video.dvd.software,alt.video.dvd.tech,rec.video.desktop,rec.video.dvd.tech (More info?)

"Ken Maltby" <kmaltby@sbcglobal.net> wrote in message
news:40e331d6$0$34758$a32e20b9@news.nntpservers.com...
>
> "Brian C. Allen" <bca-no-spam-please-om@cox.net> wrote in message
> news:40E2F2B7.9040104@cox.net...
> > Tony wrote:
> > > My gf is going to capture kids VCR tapes onto DVD, they are usually
> around
> > > one hour, be good to get 3 onto a DVD
> > >
> > > To take account of the easier quality source (cartoons, etc) we will
> encode
> > > at a lower bitrate, but an easier option may be to encode at higher
> quality
> > > bitrate, then use DVDShrink to make 3 hours fit onto a DVD? A benefit
is
> > > that with DBDShrink, we can fil, it up, rather than guessing the
> bitrate,
> > > especially as soem tapes will be a bit longer or shorter than 60
> moinutes
> > > each? Or would it be better to encode lower, allowinmg DVDShrink to
> compress
> > > less?
> > >
> > > Interested (both practically and technically) to hear any comments.
> > >
> > > 8000 bitrate would give about 70 minutes onto a DVD
> > >
> > >
> >
> > Being that they are kid's tapes and will have limited use in that the
> > kids will grow up and stop watching them, you may want to consider
> > capturing at MPEG-1 352x240 1150kbs. This is part of the DVD standard
> > and at that resolution and lower bitrate, you can fit 7 hours and 5
> > minutes on each DVD. It is VCD quality which is roughly the same as
> > VHS. If you have a good capture card, you should not see much of a
> > difference at all.
> >
> > BCA
> >
>
> If your source is interlaced, I would go with 352x480
> MPEG2 VBR set to not lower than 1150 and avg ~2500
> max ~4000 that will give you ~6 hrs/DVD.
>
> Luck;
> Ken

352x576 for PAL?
--
Rob

 

[Guest]

Archived from groups: alt.video.dvd.software,alt.video.dvd.tech,rec.video.desktop,rec.video.dvd.tech (More info?)

"Tony" <tdale@xtra.co.nz> wrote in message news:<SdxEc.5648$LT3.222729@news.xtra.co.nz>...
> My gf is going to capture kids VCR tapes onto DVD, they are usually around
> one hour, be good to get 3 onto a DVD
>
> To take account of the easier quality source (cartoons, etc) we will encode
> at a lower bitrate, but an easier option may be to encode at higher quality
> bitrate, then use DVDShrink to make 3 hours fit onto a DVD? A benefit is
> that with DBDShrink, we can fil, it up, rather than guessing the bitrate,
> especially as soem tapes will be a bit longer or shorter than 60 moinutes
> each? Or would it be better to encode lower, allowinmg DVDShrink to compress
> less?
>
> Interested (both practically and technically) to hear any comments.
>
> 8000 bitrate would give about 70 minutes onto a DVD



That's an awesome idea, I will try it and get back to you




STRATEGY

 

[jem]

Archived from groups: alt.video.dvd.software,alt.video.dvd.tech,rec.video.desktop,rec.video.dvd.tech (More info?)

Keith Clark wrote:
>
> Tony wrote:
>
>
>>My gf is going to capture kids VCR tapes onto DVD, they are usually around
>>one hour, be good to get 3 onto a DVD
>>
>>To take account of the easier quality source (cartoons, etc) we will encode
>>at a lower bitrate, but an easier option may be to encode at higher quality
>>bitrate, then use DVDShrink to make 3 hours fit onto a DVD? A benefit is
>>that with DBDShrink, we can fil, it up, rather than guessing the bitrate,
>>especially as soem tapes will be a bit longer or shorter than 60 moinutes
>>each? Or would it be better to encode lower, allowinmg DVDShrink to compress
>>less?
>>
>>Interested (both practically and technically) to hear any comments.
>>
>>8000 bitrate would give about 70 minutes onto a DVD
>
>
> I would just capture at the higher rate and then use DVD shrink. I've done it a
> number of times and it's easier (less hassle) than guestimating bitrates, and
> surprisingly enough, it can give better results.
>

Or better yet just skip the pain and suffering and let the kits watch VHS.