After lots of trial and error each time I convert a video to WebM, I finally got around to posting this so I don’t forget next time. In a nutshell, here’s the conversion command that works for me: avconv -i myvideo.mp4 -acodec libvorbis -aq 5 -ac 2 -qmax 25 -threads 2 myvideo.webm What is this … Continue reading How to Convert Videos to WebM With FFmpeg/AVConv
I have an old hard drive I want to throw away but I don’t want any remaining photos, financial documents or other personal data getting in the wrong hands. In other words, I want to completely and securely wipe the drive. With Linux there are several options and after a bit of research, here’s what … Continue reading How to Wipe a Hard Drive With Linux
I wanted to edit one of my geeky songs in PiTiVi and burn it to DVD. After searching around and trying a few things it seemed to work, so for reference, here’s how I did it. Important: Save the PiTiVi project before you start, as I’ve found it to be prone to crashing. Once the video and audio are ready, … Continue reading How to Create a DVD-Compatible Video in PiTiVi
A quick tip that might help others (or me, the next time I forget)… I found that Evince, Ubuntu’s default PDF viewer, doesn’t display Japanese characters, at least on my non-Japanese system. After a quick search it seems the answer is nice and simple – install the poppler-data package. So, either use the Synaptic Package Manager or … Continue reading How to Show Japanese Text in Evince
On two separate installations of Ubuntu 10.10 I got the following message when trying to update Opera using Ubuntu’s Update Manager:“Requires installation of untrusted packages” Unfortunately, the only option available was to click the Close button with no help to fix the problem. Fortunately, there’s a solution, also on My Opera, that worked for me: my.opera.com/vinhphuc121583/blog/fix-error-requires-installation-of-untrusted-packages … Continue reading Opera Update: “Requires installation of untrusted packages”
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