unable to play video after upgraded to ubuntu 16.04 from 14.04

[Ralf Mardorf]

On Tue, 3 May 2016 14:51:54 +0200, Liam Proven wrote:
>On 3 May 2016 at 14:00, Ralf Mardorf <silver.bullet at zoho.com> wrote:
>> It might be useful for rollback purpose. Sometimes downgrading might
>> be required to fix an issue.  
>
>Hmm. I guess. I have occasionally rolled-back to an older package, but
>when I have needed to do that, I went and fetched the package
>manually, or told Synaptic what version to install. I have never, ever
>used the cache for it.

Ok, I agree it's overcautious to keep the apt cache and there very,
very, very unlikely ever is a reason to get a package from the cache,
as long as we've got good and fast access to the Internet and/or
backups.

I revoke my claim. Apart from a minimal, neglectable remaining risk,
there's nothing wrong with cleaning or auto cleaning the cache.

;)