These packages have not yet undergone sufficient testing to put into the main Repository.
While care has been taken to ensure these packages are safe and run correctly, nobody has all possible combinations of hardware and software to test with. The packager may not be a regular user of a program he or she packaged and needs input from those who know the program better.
Once enough reports come in that they run properly thse programs will be moved into the main Repository.
If you decide to test one of these programs, please let the packagers know your results.
Find the appropriate thread in this
Forum and let us know how it worked.