At 12:46 PM 21/02/2005 +0100, you wrote:

>Hello,
>
>I am using a 45 GB Interbase 6.5 database, and i succesfully restored
>a backup on Firebird 1.5.2.
>
>I would like to know that if i create a backup using Firebird, will i be able
>to restore this again on Interbase?

No. The on-disk structure version is too high for IB 6.5 - there are some
indexes in the system tables that IB 6.5 won't recognise.

>P.S. After i restored the database on Firebird, i noticed that the
>database shrinked to about 35GB. Is this normal?

Yes. The other 10 Gb comprised free space and garbage. A restore
eliminates these by rebuilding a completely fresh database from scratch.

./hb