For Mencoder and Mpalyer seperate page is maintained

Mounting an iso image:
mount -t iso9660 -o ro,loop Disk1.iso /mnt/iso

Font Installaton
copy all fonts into /usr/share/fonts and run fc-cache. eg:
sudo cp mlkr0ntt_TTF.ttf /usr/share/fonts
sudo fc-cache -f -v
restart the application to see the font in effect.

rsync
in windows you can use cygwin
rsync -av /cygdrive/Z/Temp/docs/ /cygdrive/c/docs/

Mplayer options
-aspect 16:9 //set the aspect ratio
-ss 3:30 //seek to 3 minutes and 30 seconds
-ss 300 //seek to 300th second
-fs //full screen mode
visit following site to see more options:
http://www.keyxl.com/aaa2fa5/302/MPlayer-keyboard-shortcuts.htm
http://forums.debian.net/viewtopic.php?t=17783

Ram Disk (Experiments):
These are pure ram disks so need to format it atfirst.
The biggest limitation is that size of the ram disk is decided by the paramter at the boot time.
tmpfs is a better alternative
# mkfs -q /dev/ram1 8192
# mkdir -p /ramcache
# mount /dev/ram1 /ramcache
# df -H | grep ramcache


Mount RAM disk (tmpfs) to a location:
mount -t tmpfs -o size=100M,mode=0755 tmpfs /home/jobin/cache/                        #execute with root privilage

Compiling from  Source.
For the best performance, use binaries made for your cpu or compile yourself, using optimized settings for CHOST, CFLAGS, CXXFLAGS
these environment variables are used by the build process (./configure && make) to optimize the program code. read here