denobis,
I've found another issue but I don't know if it is related to atresdownloader.
When attempting to download videos that have many parts (12 in my case), it appears that the resulting video final that is created after all the parts are downloaded isn't working properly. The video initially plays fine but somewhere in the video it will begin to lag, become choppy and not run properly. One example is from the link below. I've noticed this mainly happening on videos greater than 1 hr in runtime. I do have one file that was 45 mins where it experienced the same issue. Could this be a result of the final muxing process being done by atresdownloader to combine the files? Maybe something is corrupting it? I'm using the 17.3P version of your tool.
http://www.nbcnews.com/feature/datel...ection-n117986