DVDfab isn't the first to make this kind of downloader. I've compared the media info from a file downloaded with dvdfab and another app. Here's the results:
DVDfab:
General
Complete name : V:\#recycle\New Rips\AnyStream\Octonauts_S01E01_The Undersea Storm _ The Giant Squid.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom (isom/iso2/avc1/mp41)
File size : 887 MiB
Duration : 23 min 28 s
Overall bit rate mode : Variable
Overall bit rate : 5 283 kb/s
Collection : Octonauts
Season : 4
Track name : The Undersea Storm / The Giant Squid
Description : It's reef lobsters to the rescue when Kwazii's Gup-B breaks down; the Octonauts launch a determined search for an elusive giant squid.
Recorded date : 2010
Writing application : DVDFab Video Downloader
Part_ID : 1
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L4
Format settings : CABAC / 1 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference frames : 1 frame
Format settings, GOP : M=1, N=24
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 23 min 28 s
Bit rate mode : Variable
Bit rate : 5 151 kb/s
Maximum bit rate : 5 500 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.099
Stream size : 865 MiB (98%)
Codec configuration box : avcC
Audio
ID : 2
Format : AAC LC SBR
Format/Info : Advanced Audio Codec Low Complexity with Spectral Band Replication
Commercial name : HE-AAC
Format settings : Implicit
Codec ID : mp4a-40-2
Duration : 23 min 28 s
Bit rate mode : Constant
Bit rate : 128 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 23.438 FPS (2048 SPF)
Compression mode : Lossy
Stream size : 21.5 MiB (2%)
Default : Yes
Alternate group : 1
Otherapp:
General
Complete name : V:\New Rips\AnyStream\Octonauts - 01x01 - The Undersea Storm - The Giant Squid.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom (isom/iso2/avc1/mp41/iso6/piff)
File size : 474 MiB
Duration : 23 min 28 s
Overall bit rate mode : Variable
Overall bit rate : 2 820 kb/s
Movie name : The Undersea Storm / The Giant Squid
Encoded date : UTC 2020-12-18 02:51:27
Tagged date : UTC 2020-12-18 02:51:27
Comment : It's reef lobsters to the rescue when Kwazii's Gup-B breaks down; the Octonauts launch a determined search for an elusive giant squid.
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference frames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 23 min 28 s
Source duration : 1 min 59 s
Bit rate mode : Variable
Bit rate : 2 688 kb/s
Maximum bit rate : 20.0 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.052
Stream size : 451 MiB (95%)
Source stream size : 451 MiB (95%)
Writing library : x264 core 148 r2715 7e75228
Encoding settings : cabac=1 / ref=4 / deblock=1:0:0 / analyse=0x3:0x111 / me=umh / subme=10 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=120 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=6 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / stitchable=1 / constrained_intra=0 / bframes=16 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=126 / scenecut=0 / intra_refresh=0 / rc_lookahead=250 / rc=crf / mbtree=1 / crf=24.0 / qcomp=0.50 / qpmin=6 / qpmax=51 / qpstep=4 / vbv_maxrate=20000 / vbv_bufsize=25000 / crf_max=0.0 / nal_hrd=vbr / filler=0 / ip_ratio=1.40 / aq=1:0.80
Encoded date : UTC 2020-12-18 02:51:27
Tagged date : UTC 2020-12-18 02:51:27
mdhd_Duration : 1408480
Codec configuration box : avcC
Audio
ID : 2
Format : E-AC-3
Format/Info : Enhanced AC-3
Commercial name : Dolby Digital Plus
Codec ID : ec-3
Duration : 23 min 28 s
Bit rate mode : Constant
Bit rate : 128 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Compression mode : Lossy
Stream size : 21.5 MiB (5%)
Language : English
Service kind : Complete Main
Encoded date : UTC 2020-12-18 02:51:27
Tagged date : UTC 2020-12-18 02:51:27
Text
ID : 3
Format : Timed Text
Muxing mode : sbtl
Codec ID : tx3g
Duration : 1 min 17 s
Source duration : 22 min 46 s
Bit rate mode : Variable
Bit rate : 46 b/s
Stream size : 451 Bytes (0%)
Source stream size : 12.2 KiB (0%)
Title : English / English
Language : English
Forced : No
Encoded date : UTC 2020-12-18 02:51:27
Tagged date : UTC 2020-12-18 02:51:27
I'm not knowledgeable enough to know how to compare these files... Anyone able to share any insights?
