unable to extract vrts_sf_ha media

I recently downloaded the Veritas Cluster media for learninig/testing purpose.

issue is while i try to extract the media;

gtar -xvzf  VRTS_SF_HA_Solutions_6.0_Solaris_SPARC.tar.gz

it started to extract after extracting 865 MB of data it returened the error

./dvd1-sol_sparc/readme_first.txt

gzip: stdin: invalid compressed data--crc error
/usr/sfw/bin/gtar: Child returned status 1
/usr/sfw/bin/gtar: Error is not recoverable: exiting now
bash-3.2# du -sh dvd1-sol_sparc/
 865M   dvd1-sol_sparc

then I tried

bash-3.2# gunzip -d VRTS_SF_HA_Solutions_6.0_Solaris_SPARC.tar.gz

gunzip: VRTS_SF_HA_Solutions_6.0_Solaris_SPARC.tar.gz: invalid compressed data--crc error

then

gzip -d VRTS_SF_HA_Solutions_6.0_Solaris_SPARC.tar.gz | tar xvf -

gzip: VRTS_SF_HA_Solutions_6.0_Solaris_SPARC.tar.gz: invalid compressed data--crc error
tar: blocksize = 0

I tried winrar, 7-zip etc

Thanks in advanc Guru.......
 

Owais Hyder.