Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal

There's one issue that I thing its very important:

Imagine (even with a SCSI disc) how long does it take to compress 1Gb of
data!!!

...and, if you need it again, wait more for the uncompressing. Thats why
I prefer to live with bigger disks or burn more CDs or DVDs.

Regards,
Nuno Moreno


Mike Bode wrote:
> Search the CONFOCAL archive at
> http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal
>
> Hello Olaf,
>
> I haven't heard of any problems with ZIP, and I use it quite often. Another
> option would be to select an image file format that allows compression.
> There is a JPG standard (JPEG2000), which allows loss-less compression, but
> then again, I have no information about the robustness of that format
> either.
>
> Don't expect huge space savings from ZIP, though. Typically you get
> compression factor of 2. Since hard disks are pretty cheap these days, it
> may not be worth the hassle of zipping everything.
>
> mike
>
>
> Michael Bode, Ph.D.
> Soft Imaging System Corp.
> 12596 West Bayaud Avenue
> Suite 300
> Lakewood, CO 80228
> ===================================
> phone:  (888) FIND SIS
>         (303) 234-9270
> fax:    (303) 234-9271
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>
>
>
> -----Original Message-----
> From: Olaf Selchow [mailto:[log in to unmask]]
> Sent: Monday, March 08, 2004 03:05
> To: [log in to unmask]
> Subject: Winzip? Data Compression for Archive
>
>
> Search the CONFOCAL archive at
> http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal
>
> Hello,
>
> I have a question concerning winzip compression of confocal data: In order
> to archive large amounts of data from our confocals (mainly tif-images
> created by Leica LCS) I'm looking for a good way to compress the files. The
> easiest would be to use winzip (which everybody has to unzip in case the
> data needs to be restored). But I've heard rumors that winzip would not be
> very reliable, especially with image data and that often files would be
> corrupted and can't be restored. Is that true? Anybody who has experience
> with that type of problem?
>
> Thanks very much!
>
> Olaf
>
> --
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> *****************************************************
>  ----------------------------------------------------
> | Dr. Olaf Selchow                                   |
> | SFB 495, Project Z1 - Central Microscopy Facility  |
> | Institute of Cell Biology and Immunology           |
> | University of Stuttgart                            |
> | Allmandring 31, 70569 Stuttgart, Germany           |
> | T: +49 711 685 8209, Fax: +49 711 685 7484         |
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--
___________________________
Nuno Moreno
Phone: +351 214464606
Fax    : +351 214407970
www.igc.gulbenkian.pt
Cell Imaging Unit
Instituto Gulbenkian de Ciência
Portugal
___________________________