Use the vcdimager tool. To install type command as shown below after opening up a terminal window as described here.
# yum install vcdimager <enter>
To convert to MPG file, type command as shown below:
$ vcdxrip –track=7 –no-ext-psd –gui –progress –nofiles <enter>
To combine 2 MPG files into one:
$ cat file1.mpg file2.mpg > total.mpg<enter>