New External Hard-Drive format issue

[MirJafar Ali]

Hello,

May be this question has nothing to do with Ubuntu in general, but someone
probably give good advice.

Recently I have purchased one seagate 640GB portable hard-drive and most of
the time ( > 95% ) I work on
Linux ( Ubuntu of course ). So

1.   Is it advisable to format the disk with ext4 fileformat ? I use Ubunbu
9.10 right now.

2.   If I reformat my disk for ext4 filesysystem, will I loose "preloaded
backup and encryption software".
      and file synchronization. If yes, what alternate shall I have ? Do we
have good software for Linux which
      can replace the functionalities ?


Thanks.
Mir
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