observations:

• download button doesn't work
• only bad video quality available when videos have multiple selections, for example: j6aLdd7ZYmU, Nh8CfWEnSJ8
• description in a editable textfield is not intuitive (no thumb scrolling).

Didn't spot any unplayable videos. Emanuelle, can you pass the youtube link of some unworking videos?

Suggestions:

• put the "search" field visible in the top of the first zoutube screen.

I think only the non-working download button is really critical and worth downthumbing, the other issues are more minor.

didn't manage find videos that are unplayable but other points apply.

After the "things like" and before the "appear" there should be a "< br >" without spaces, but the site has read it as an html code.

• Many videos are unplayable, it opens up the Multimedia system up and can't properly read the flux

• Download button doesn't work

• Videos' descriptions are not completely readable, they are interrupted if they're too long.

• Videos' descriptions are not properly formatted, zoutube can't read the HTML code inside them and things like
  appear

• Videos' descriptions are not scrollable, you have to do tricks in order to scroll down them

• After selecting a video, zoutube takes lots of time for loading the next panel, it seems to be frozen for a few secs