I cant boot the live dvd .....

After the second screen of booting process stops with following messages:

BusyBox v1.22.1 (ubuntu1:1.22.0 – isubuntu1) built – in shell (ash)
Enter ‘help’ for a list of bult-in commands,
(initramfs) stdin: Not a Typewrtiter
mountung /dev/loop0 on //filesystem,squashfs failed: No such device
Can not mount /dev/loop0 (/cdrom/casper/filesystem.squashfs) on //filesystem,squashfs.

I don’t know what to do to install the this excellent OS.

Did you create a live usb stick or a live dvd ?
Can you check the md5sum of the iso and compare it with the one we provide.

Thank you for your reply.
I’ ve checked the md5sum and it’s the same with the one you provide.
I created a live usb and a live dvd too. The problem is the same.

It can’t find your live media which is strange. Is the thumbdrive powered off maybe after the bootmenu starting?