Grimm Season 1 480p AC3 torrent

Converted this for personal use, i don't see any difference with the 720p twice the size.

Format : Matroska
Format version : Version 2
File size : 490 MiB
Duration : 42mn 57s
Overall bit rate : 1 595 Kbps
Writing application : Lavf51.12.1
Writing library : Lavf51.12.1

Video
ID : 1
Format : MPEG-4 Visual
Format profile : Simple@L1
Format settings, BVOP : No
Format settings, QPel : No
Format settings, GMC : No warppoints
Format settings, Matrix : Default (H.263)
Codec ID : V_MPEG4/ISO/ASP
Codec ID/Info : Advanced Simple Profile
Duration : 42mn 57s
Bit rate : 1 372 Kbps
Width : 856 pixels
Height : 480 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.139
Stream size : 421 MiB (86%)
Writing library : Lavc51.40.4
Language : English
Default : Yes
Forced : No

Audio
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Format settings, Endianness : Big
Codec ID : A_AC3
Duration : 42mn 57s
Bit rate mode : Constant
Bit rate : 192 Kbps
Channel count : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 59.0 MiB (12%)
Language : English
Default : Yes
Forced : No