Home › Forums › General Topics › Quick Questions › Choosing the right audio/video copy rate and quality
- This topic has 6 replies, 4 voices, and was last updated 15 years, 10 months ago by Beardy123.
-
AuthorPosts
-
February 4, 2009 at 7:32 pm #160992ragmanMember
I’m backing up some videos from dvd format to flash memory and putting them on the NC10 for viewing on long plane trips. When transferring I’m given choices of:
Video Size
Video Bitrate
Audio Bitrate
Frame Rateand within each of these are four or five choices.
Can anyone recommend a good mix of choices for the NC10? I suppose any backup program has similar options (although I’m using Plato DVD to IPOD Ripper). It does a fine job. I’ve test the lowest end settings vice the highest end settings and there is clearly a difference in quality, but it is hard to distinguish in the inbetween settings. Thanks.
February 4, 2009 at 10:04 pm #182518Beardy123MemberI can’t advise on the best settings but most people post video’s on the torrent and news groups in XVID format which is a standard of DIVX video compresion. If you look for DVD to XVID guides on Google you will find many and alot of the conversion software is free. The quality is very good on the audio and video. I would advise against 720 or higher resolution as it is not worth it on the NC10’s resolution. I would also advise using VLC media player as it has nearly all codecs installed and uses very little resources. I hope this helps in some small way.
February 4, 2009 at 10:14 pm #182513AlfiharParticipantIf you are going from DVD then just use the same size as the input video. DVD’s will be of a lower resolution than the NC10’s screen.
It sounds like you are using a converter meant to create files for playback on an iPod. If thats the case then you are probably going to be encoding using either H.264 or MPEG4.
MPEG4 will be quicker to encode and should use less power to decode. However it will take up more disk space than H.264. If you use MPEG4 then you will need a higher bitrate.
I would leave the frame rate alone.
As you have had a go at various quality settings it sounds like just setting it inbetween would be fine for you.
February 4, 2009 at 10:34 pm #182516ragmanMemberIs VLC media player better/clearer/easier than quicktime or wmp? Yes I am getting mpeg4 as my output. The quality of the picture is less than I’d like. Is the NC10 screen the same as a portable DVD player screen? Watching it in quiktime
February 4, 2009 at 11:25 pm #182515Billy RubinMemberVideo Size 608×352
Video Bitrate 1500-1600kbps
Audio Bitrate 128kbps CBR
Frame Rate 25fps for PAL – 30fps for NTSCThese are roughly the settings I use in AutoGK when I convert 9Mbs .mpg grabs to 700Mb/per hour .avi for posting to usenet.
February 4, 2009 at 11:33 pm #182514AlfiharParticipant[quote1233790070=ragman]Is VLC media player better/clearer/easier than quicktime or wmp?[/quote1233790070]
It tend to find the quality is slightly worse and scrubbing is appalling, VLC though is great for playing back a huge range of video types without worrying about codecs. That said I would only consider using QuickTime under OS X, not on Windows.[quote1233790070=ragman]Is the NC10 screen the same as a portable DVD player screen?[/quote1233790070]
It will be a higher resolution, DVD’s will go up to either 720 × 576 (25fps PAL) or 720 × 480 (29fps NTSC) so this is what a portable DVD players screen will usually produce. The NC10’s screen has a resolution of 1024×600.February 4, 2009 at 11:39 pm #182517ragmanMember[quote1233790753=Billy Rubin]
Video Size 608×352
Video Bitrate 1500-1600kbps
Audio Bitrate 128kbps CBR
Frame Rate 25fps for PAL – 30fps for NTSCThese are roughly the settings I use in AutoGK when I convert 9Mbs .mpg grabs to 700Mb/per hour .avi for posting to usenet.
[/quote1233790753]
Very useful. thanks -
AuthorPosts
- You must be logged in to reply to this topic.