problem with installing 6.1

[Valery V. Bobrov]

Hi!

I downloaded ISO from official site and wrote onto CD disk
I tried to install FReeBSD version 6.1 and I faced the following problem:

The Sysinstall program writes:

unable to transfer the base distribution from acd0

write failure on transfer (wrote 1 bytes of 1425400)



What sort of problem?
Thank you in advance
Version 5.4 installed successful on the same server


Yours faithfully
Valery
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