is 1280x720 video resolution blu-ray ?

Lucifer

Is it Blu-ray, DVD or HD DVD ?

this is some information about the media file using mediainfo

Video

Format : AVC
Format/Info : Advanced Video Codec
Format_Profile : High@L4.1
Format_Settings_CABAC/String : Yes
Format_Settings_RefFrames/String : 9 frames
CodecID : avc1
CodecID/Info : Advanced Video Coding
Duration/String : 24mn 26s
BitRate/String : 2 422 Kbps
BitRate_Maximum/String : 20.3 Mbps
Width/String : 1 280 pixels
Height/String : 720 pixels
DisplayAspectRatio/String : 16:9
FrameRate_Mode/String : Constant
FrameRate/String : 23.976 fps
ColorSpace : YUV
ChromaSubsampling : 4:2:0
BitDepth/String : 8 bits
ScanType/String : Progressive
Bits-(Pixel*Frame) : 0.110
StreamSize/String : 423 MiB (92%)
Encoded_Library/String : x264 core 130 r2273 b3065e6


Audio

Format : AAC
Format/Info : Advanced Audio Codec
Format_Profile : LC
CodecID : 40
Duration/String : 24mn 26s
BitRate_Mode/String : Variable
BitRate/String : 207 Kbps
BitRate_Maximum/String : 248 Kbps
Channel(s)/String : 2 channels
ChannelPositions : Front: L R
SamplingRate/String : 48.0 KHz
Compression_Mode/String : Lossy
Video_Delay/String : 83ms
StreamSize/String : 36.2 MiB (8%)

Answer
Wow - are you confused.

There is no such thing as "BluRay" resolution or format.

Let me explain:

DVD disks are a 'container' for standard def video which is 480 lines of resolution.

BluRay is a 'container' for the newer HDTV standard which includes 3 different resolutions: 480, 720, 1080.

Computer video files can be ANY resolution from 200 - 4096 rows of video.

What you have is a computer file (probably in a MKV container) that matches the 720 lines of video resolution which is one of the defined HDTV standards.

This does NOT mean it will play on your BluRay player (players are NOT computers)

Why can't use x264/avc to compress DVD movies?

rame

The norm is to compress 4-5gb DVD movies to 700mb rips by using divx or xvid. Lately when Blu-Ray came out, 25gb movies are compress to 4-5gb by using x264/avc format...

My question is, why can't we also use x264/avc format when compressing standard DVD? Wouldn't we possibly get a smaller size?

Simple yet detailed answers appreciated..

Note to mod:This has nothing to do with piracy...just a simple question regarding compression...

Answer
might work with computer geared to play DVD as rom. however very few standalone DVD players have an MPEG4 codec. once players get the chip to decode the format, then you could get more compression on a DVD.

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