The famous message "WE'RE SORRY THIS VIDEO IS NO LONGER AVAILABLE"
is typically the result of software which stupidly claims that
they can actually "accelerate" video buffering. This includes
crappy things such as GWA, SpeedBit, Trident, Jaton, ATI,
Diamond Fire and Easy Video Accelerator.
Of course nothing "accelerates" streaming video files. Even
the people at YouTube, Google and Macromedia know this,
and write that in their own FAQs. Thus if you have any kind
of "accelerator"...then dump it, burn it, kick it, rip it, trash it,
uninstall it; do everything you can to get as far away from it
as possible.
If you do not have one of those moronic utilities, something
on your computer is interfering with YouTube. Thus, please
consider any of these possibilities:
Not much in terms of playing YouTube vids has changed in
the past 2 years. If anything, all the newer flash players are
causing lots of YouTubers some kind of grief, especially all
5 variations of version 10. It's crazy that there is a 10.0.525,
10.1.218, 10.2.26, 10.2.54 and 10.12.36. For the most part,
updates are typically good for one thing: computer/software
problems. I have never strayed away from 9.47, and a lot of
"flashers" swear by 9.45. Think of those 2 like Windows XP
compared to Vista. Take a look at the "Asker's" comments
to this other "Best Answer" of mine:
https://answersrip.com/question/index?qid=20081125075929AABZpVS
You may also wish to consider these alternate possibilities:
→ Tools → Internet Options → Connections (tab)
→ LAN Settings (which is the very last button)
→ uncheck "Automatically detect settings"
→ Tools → Internet Options → Advanced (tab)
→ scroll down until you reach "Multimedia"
→ check-mark all but "Show image download placeholders"
Two people have written to me saying after they got rid of a
certain software, things seemed to work all right afterwards:
One person got rid of his "nVidia" drivers; the other trashed
his "ad blocking" utility. Do you perhaps have either or both
of these on your computer?
I've saved my favorite other solution for the end. YouTube is
at its best when you clear all your "Cookies", "History" and
"Temporary Internet Files". My cool "CHTIF" triple-cure has
resolved hundreds of people's problems, so why not yours?
Close out YouTube, do the following, then shutdown/reboot:
Internet Explorer 6:
→ Tools → Internet Options
→ Delete Cookies → OK
→ Delete Files → OK
→ Clear History → Yes
→ OK
Internet Explorer 7:
→ Tools → Internet Options → Delete...
→ Delete files → Yes
→ Delete cookies → OK
→ Delete history → OK
→ Close (browsing history window)
→ OK
Mozilla Firefox
→ Tools → Clear Private Data
[x] Browsing History
[x] Download History
[x] Saved Form and Search History
[x] Cache
[x] Cookies
→ Clear Private Data Now
I hope my multiple answer is helpful for you. If you are able
to determine the "cause" and its "cure", I would appreciate
it if you could please let me know, either by clicking on my
avatar or emailing me at "inukjuak90@yahoo.com".
Note 1: YouTube vids only require "Flash" and "Shockwave"
in order to play smooth. Other than that, avoid all the sales
pitches that some Yahooers may be shilling, because they
are really disguised salespeople & peddlers. Their answers
have nothing to do with your question, and their wares may
actually worsen your problem. Besides, what kind of idiotic
answer is: "Despite the fact that you can't watch or access
videos at all, buy our downloader." [my paraphrase]
IMPORTANT: ANOTHER POSSIBLE CAUSE IS FIREFOX 3 AND ITS
INTERACTION WITH YOUTUBE'S (GOOGLE'S) "CACHE" SERVERS
THAT REFUSE THE PLUG-IN'S REQUEST FOR VIDEO FILES. THIS
RETURNS A FALSE ERROR CODE TO YOUTUBE SAYING THAT IT
CAN'T FIND THE VIDEO, OR THAT THE REQUEST DOESN'T MAKE
SENSE.
OF COURSE, THE VIDEOS ARE REALLY THERE, BUT FOR SOME
STRANGE REASON, YOUTUBE RETRANSMITS THE ERRONEOUS
CODE TO A "THIS VIDEO IS NO LONGER AVAILABLE" MESSAGE.
WHAT'S THE SOLUTION? NOBODY KNOWS, BUT IT IS A FIREFOX
AND YOUTUBE ISSUE. IF YOU'RE USING FIREFOX 3, YOU MIGHT
WANT TO TRY A DIFFERENT BROWSER.