I use Avidemux mainly to convert YouTube flv to mp4, and so far it has been working perfectly without any loss of quality. I use the "Copy" video/audio feature. However, the mp4s always have the filename added as a caption (or a title) while the original flvs did not. All I do is I manually remove the captions from each file.
How I can disable that?
Thank you.
With vlc open the mp4 when video is playing press Pause
Now from vlc menu: Tools > Media Information
in title field erase the contents and save.
Or you have to use a program like mp3tag (http://www.mp3tag.de/en/index.html)
Could be there is a solution in Avidemux to change that behavior?
To save yourself some time, you might try using movgrab to get the file you want from youtube rather than getting a flv and converting it. As an example so you can see that youtube always creates multiple filetypes:
$ movgrab -T http://www.youtube.com/watch?v=eDK-EJPM_e4
Formats available for this Movie:webm:1920x1080 (213.1M), mp4:1920x1080 (188.8M), webm:1280x720 (118.8M), mp4:1280x720 (110.4M), webm:854x480 (43.8M), flv-h264:854x480 (62.2M), webm:640x360 (35.3M), flv-h264:640x360 (35.8M), mp4:480x360 (30.4M), flv:400x240 (16.7M),
Selected format item:webm:1920x1080
TEST MODE: would have downloaded 'HIGH DEFINITION HUGE MANITOBA TORNADO! June 23, 2007 -' url=http://o-o.preferred.sjc07s15.v21.lscache2.c.youtube.com/videoplayback?upn=_Klo1YnSax8&sparams=cp%2Cid%2Cip%2Cipbits%2Citag%2Cratebypass%2Csource%2Cupn%2Cexpire&fexp=904001&itag=46&ip=173.0.0.0&signature=21E8C3E2671BC6FBF0916787AB463EB88E80A083.B83FFD1E6DC5B51E5E6ED5301A3F0AEDF7A1D21A&sver=3&ratebypass=yes&source=youtube&expire=1335449389&key=yt1&ipbits=8&cp=U0hSSlRPV19NU0NOMl9MSUFEOk92bjRaMzFHV05a&id=7832be1093ccfdee