How to reduce the video size?

I have lot of blu ray video songs.Now there is no free space to store more.
I want to reduce the video size by maintain the 75% of original video quality.
I tried HandBrake. But i don’t get my needs.
Is there any other software to do it?
or
how to use Handbrake?
or
Any other tips?
Pls don’t tell buy new Hard Disk.
Answer #1
With Handbrake you should keep the same resolution, but lower the bitrate.
What settings did you use.
Answer #2
I find WinAVI to be the best converter, really fast too
Answer #3
u cud also do a “search” of helpdesk for ” reduce video size” ,and read all that has been suggested previously