What video downloader should I use?

If you like to download youtube videos, i suggest you internet download manager (IDM) it extracts a video from any video stream and automaticaly downloads it.
Nice tool

Reinstall Real Player if you liked that app.

If you’re talking about a general replacement video playback app for a PC – I recommend VLC

For downloading videos I like KeepIt (keepvid.com). For playing them, like @ipso said, if you like Real Player, just reinstall it.

@llewis I still have Real Player – I just don’t know what to do in order for it to be available while browsing videos (like youtube). Before, there was a button that would appear if I wished to download a video. Now, nothing.

@ipso I also have VLC, but I don’t know how to utilize it (see ^^^).

@llewis @valdasta
IDM do the same thing for youtube.

If you can open Real Player and check the options, there might be a checkbox to make that available to you again. If not, it won’t hurt to re-install it – you can go to the Add & Remove Programs; usually there will be a reinstall available, or if not just re-run the install program.