I was trying to burn a folder with a VIDEO_TS
directory onto a DVD. But in a
way that it will start in a normal DVD player as well as starting
automagically. And this all had to be done on Apple's OSX.
I googled a little and tried some things and this is what I can up with:
hdiutil makehybrid -udf \
-udf-volume-name DVD_NAME \
-o MY_DVD.iso \
/path/to/VIDEO_TS/parent/folder
Make sure that /path/to/VIDEO_TS/parent/folder
is the path to the folder
containing the VIDEO_TS
folder, not the VIDEO_TS
folder itself.`
After that, the resulting MY_DVD.iso
can easily be burned with
burn
To present PDF slides on Linux I use
pdfPres. But when I want to
use this on OS X Lion, this doesn't work. So I created an OS X Lion package for
pdfPres.
This is only tested on OS X Lion and it does require XQuartz.
Please, download the pdfPres package and test it.
Last Friday I decided it was time to update my MacBook to OS X Lion. So I went
to the app-store and donated my 23.99 euros to Apple.
The download was fast, very fast, if you consider how many people where
downloading at that same moment.
After the download I first made a copy of the installer files, because I read
that the installer throws these files away after installation. And, of course,
I made a full backup with Time Machine.
Installation went smooth, but took a very long time. Initially the installer
said it would take 33 minutes, but the total time ended up to be closer to two
hours.
This is what the system says now: 
Everything is working smoothly, but I did have to reinstall VMware Fusion. This
had a little USB problem, that went away after the reinstall. Some programs
needed to be updated (MacPorts and some others). And, if you are using
anything like Photoshop, you need to install Java. Java is not part of the
Lion install (due to licensing tricks made by Oracle) but you can still
download it from Apple. Just search for 'Java Lion'.