bitrate for DivX

[Amun]

Hi,

a Bitrate from about 128 or 192 is nearly CD quality when talking about MP3.

I just want to know if there is also an approximate value for DivX to get nearly DVD quality? Does anybody knows which bitrate should be used to get DVD quality or at least TV quality?

Of course I know higher bitrate will give you better quality. But if you reach DVD quality it's good enough I guess.

Could you please spent me with some numbers?

Or what else is important to get a good quality (DVD/TV) when converting a MPEG2 file to Divx?

Thanks,
Amun

[holistic]

Toooooooo funny

PCM 16bit 44.1kHz is "near" CD quality MP3 is compression and not CD "quality"

Really now, if you think they could do "DVD quality" in 650Mb CD's why even bother with multi GB storage media.

As you observed,the higher the bitrate the better the "quality".
DivX (mpeg4/ASF) codec is better than MPEG2 at very low bitrates and hence why it is used.

There is no approximate value for DivX to get nearly DVD quality it is all personal preference.

If you are trying to fit an "average" 90 minute movie on a CD then try 112audio and a video bitrate of about 950ish.
There are bitrate calc's available to simplify this process.

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[Gazorgan]

Too funny.

Actually, there is a very, very, very simple way to get DVD quality. You leave the resolution 720x480, and you de-interlace it. You set your first pass at 2000 and your second at 9000. Your done. Whatever size it comes out is DVD quality. And no, it's not going to be 9000*Movie Length. DivX will only use what it needs, so if it peaks at 5000, then it will use 5000 and not a CBR rate of 9000. Same thing applies for XviD, just set the length to 3.5 GB, it will be smaller when finished.

Leave the AC5.1 track alone.

It will be roughly 1/2 the size of the original DVD.

[Amun]

Of course I know that MP3 is compression and therefore never CD quality but with around 192 it's near CD quality and for most of the people good enough. This is normally personal preferece as well but most people could live with 192.

Therefore I've thougt that there is also some number for DivX which give me good quality. The file doesn't need to fit on one 650MB CD. More important for me at that point is the bitrate a file should have to get good quality.
Good for me is TV (maybe digital TV) and of course DVD. The quality should be somewhere in between and when this file would fit on one or I guess two 650MB CDs great. (Of course on CD would be better but again quality is more important)

I also know that there are calculators around to figure this out.

[Suntan]

Holistic,

Toooooooo funny

PCM 16bit 44.1kHz is "near" CD quality MP3 is compression and not CD "quality"

Really now, if you think they could do "DVD quality" in 650Mb CD's why even bother with multi GB storage media.

If you disagree with someone's oppinions, 128k MP3 in this case, why don't you nicely explain your point of view instead of ridiculing them.

Amun,

Personally I think that 192k for MP3 is jsut as good as a CD when I listen to it on my computer speakers or in my car, when I listen on my good sound system in an otherwise quiet room then the lack of quality is quite apparent and I prefer CD or DVD Audio.

The same can be said for DivX. I believe that leaving the resolution at 1 to 1 (720x350ish for 16:9 movies) and incoding the video at 1250kbs (using DivX 5.1 slowest if it is a really good movie/standard if not, b frames, gmc and light PV as well) is "acceptable" to me (very little difference from the DVD) when I watch on my second monitor which is a 15" CRT from about 1" to 1.5" away (while working on my primary monitor). Further, I have found that 1600kbs is good enough for watching on the main monitor, 19" CRT. If it is a non-action movie I normally convert the audio to 2 channel Ogg, if it is action I usually use the 6ch AC3 track.

Sorry, I have never tried the DivX copy on the TV as I just use the DVD. FWIW my 19" is set at 1280x1024 which is ecentially the same as a 720p Hidef TV. So as long as the specific distance is the same (my head abut 1.5 to 2 montior widths away from the tube in the case of the 19" monitor)
the picture quality should be the same regardless of screen size.

[Gazorgan]

If you go 1/2 D1, and shoot for 2 CDR's, then you can get some pretty amazing results. This will let you archive 3 films per DVDR. I have some stunning WMV's in the same bitrate/resolution range.

Remember 384 for the 5.1 track. This is 1/4 of the total bandwidth for a 2 hour/2 disk movie, which seems excessive? Again, average bitrates in the 1000-1200 range for 1/2 D1 work okay, and 2-pass VBR is mandatory with a max of at least 4000.

Pick some scene from a favorite movie and make a few encodes. A couple hours of test encodes and you can determine What works for your viewing preferences

[Amun]

Hi, thanks for all of your entries that helped a lot.