The second problem first because thats an easy one - radiation logo.  That
represents some files waiting to be burned to a blank cd or dvd.  Lion
handles these a bit differently now, but from memory you can just drag the
"untitled cd" folder off the finder window to the left and let go, it
should disappear in a puff of smoke and thats it gone.  It should only
contain aliases to files waiting to be burned, not the actual files
themselves.  Alternatively you could pop a blank cd or dvd in the drive and
press the radiation button to burn the disc,  once its finished it shouldnt
be in finder anymore.

Time Machine backups can be a bit more tricky and I havent actively used
time machine in a while now.  Time machine kind of does its thing
automatically, which should include older items disappearing out of the
back to make room for newer backups at the front...

Some more information would be helpful.
Are you also using the hard drive to store other files on as well as the
backup?
Is your main internal hard drive greater than or equal to 1Tb?
do you run any of the "usual suspect" programs that can fill up time
machine really quickly? -  Microsoft Entourage, Parallels/VMWare or other
windows virtualisation programs?
If so excuding their data files would be a good start...

On 29 January 2012 07:39, Brian Terry <brian_te...@blueyonder.co.uk> wrote:

> **
> Two problems
>
> I have a terabyte disc that I use as backup.
>
> It now tell me that I have only about 11.95 gb available and will not
> complete a backup,it does not make room for any new backups
>
> I cannot find a way to empty the disc.
> next problem
> in the rhs of the finder window under favorites(sic) the has appeared
> an icon like a radiation logo untitled cd2 and then the radiation logo
> again
> I cannot acces this b thing
>
> Can anybody help
> Regards
> Brian
>
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