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Showing posts from March, 2010

VOB file merger for Linux

This can be done in a variety of ways.

1. cat file01.vob file02.vob >newfile.vob

2. mpgjoin file01.vob file02.vob -o newilfe.vob

3. mpgcat file01.vob file02.vob -o newilfe.vob

4. mpgtx -j file01.vob file02.vob -o newfile.vob

You can also look into GOPChop and/or DVBCut,

vobcopy -i /path/to/ripped/dvd/files/VIDEO_TS -n1 -l -o /path/to/put/files/file.vob

^^ -i = input path. The complete path
-n = title number, if your not sure, use lsdvd or vobcopy -i /path/VIDEO_TS -I
-l enables large file support.
-o is the path to output the files.
You can also use vobcopy to rip from the DVD driver.

dS as FRW

deSitter spacetime in the representation as a spatially flat
Robertson-Walker universe, its metric is



See eqn. 3.24 of Ford : arXiv:gr-qc/9707062v1

These coordinates cover one-half of the full deSitter space, but this is not a serious
problem for our purposes. But in the context of inflationary models, one is interested
in spacetimes which involve only a piece of deSitter space.See for example Kima, Oh and Park ( arXiv:hep-th/0212326v1 ) for discussion on relation between dS and FRW.


my first poem

উজ্জল মন্দার নিমিত লোচন মল্লিকা
তরুদল কজ্জল লেপণকারী
তার হাতে সপে দিতে পরান পারি