Il file originale si chiama "da ponte sublicio a ponte risorgimento lungo il tevere in bici (20141018_0855-0911).mp4" 
e' un HD 1080i30 da 2 GB
tevere.avi "da ponte sublicio a ponte risorgimento lungo il tevere in bici (20141018_0855-0911).avi" 480x270
tevere_200 "da ponte sublicio a ponte risorgimento lungo il tevere in bici (20141018_0855-0911)_200.mp4" 480x270 dall'AVI
tevere_300 "Da ponte sublicio a ponte risorgimento lungo il tevere in bici (20141018_0855-0911)_300.mp4" 480x270 dall'HD


da ponte sublicio a ponte risorgimento lungo il tevere in bici (20141018_0855-0911).avi 480x270

General
Complete name                            : C:\video\tevere.avi
Format                                   : AVI
Format/Info                              : Audio Video Interleave
File size                                : 69.4 MiB
Duration                                 : 72h 9mn
Overall bit rate                         : 2 240 bps

Video
ID                                       : 0
Format                                   : MPEG-4 Visual
Format profile                           : Advanced Simple@L4
Format settings, BVOP                    : 2
Format settings, QPel                    : No
Format settings, GMC                     : No warppoints
Format settings, Matrix                  : Default (H.263)
Codec ID                                 : DIVX
Codec ID/Info                            : Project Mayo
Codec ID/Hint                            : DivX 4
Duration                                 : 19mn 32s
Bit rate                                 : 399 Kbps
Width                                    : 480 pixels
Height                                   : 270 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 25.000 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Compression mode                         : Lossy
Bits/(Pixel*Frame)                       : 0.123
Stream size                              : 55.7 MiB (80%)
Writing library                          : XviD 64

Audio
ID                                       : 1
Format                                   : AAC
Format/Info                              : Advanced Audio Codec
Format profile                           : LC
Codec ID                                 : FF
Duration                                 : 72h 9mn
Source duration                          : 25mn 21s
Bit rate                                 : 64.0 Kbps
Channel(s)                               : 2 channels
Channel positions                        : Front: L R
Sampling rate                            : 48.0 KHz
Compression mode                         : Lossy
Stream size                              : 11.6 MiB (17%)
Alignment                                : Split accross interleaves
Interleave, duration                     : 26 ms (0.64 video frame)
------------

tevere_200 da ponte sublicio a ponte risorgimento lungo il tevere in bici (20141018_0855-0911)_200.mp4 480x270 dall'AVI

General
Complete name                            : C:\video\tevere_200.mp4
Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : isom
File size                                : 28.3 MiB
Duration                                 : 19mn 32s
Overall bit rate                         : 203 Kbps
Writing application                      : Lavf54.63.104

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L2.1
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 4 frames
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 19mn 32s
Bit rate                                 : 200 Kbps
Width                                    : 480 pixels
Height                                   : 270 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Variable
Frame rate                               : 24.988 fps
Original frame rate                      : 25.000 fps
Minimum frame rate                       : 5.000 fps
Maximum frame rate                       : 25.000 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.062
Stream size                              : 28.0 MiB (99%)
Writing library                          : x264 core 123 r2189 35cf912
Encoding settings                        : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x133 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=3 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=2pass / mbtree=1 / bitrate=200 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / aq=1:1.00
--------------------------

tevere_300 "Da ponte sublicio a ponte risorgimento lungo il tevere in bici (20141018_0855-0911)_300.mp4" 480x270 dall'HD