Merge several small VOBs (software?)

[hkamiab]

Hi you all!
I need to merge couple of small *.vob to a larger one, could someone tell me what software does that?
Small *.vobs generated by utility name Vobutils.exe
I'm new to this. I downloaded several softwares :
vobspliter, vobrator02b, vobspl26, vobutils. But no luck

Thanks, Hameed

[setarip]

VobMerger and VobMerge...