Hi, Josef.
>I wonder what kind of database applications does not need reliability.
>IMHO there is no such animal.
The ones where high reliability costs more than the value the application produces, IMHO. That's key in choosing DBFs over an industrial-strenght database.
In a small shop where having corrupted indexes, a lost memo, inconsistent data, etc, is not a big problem and going back to a day-old backup is enough, DBFs can o the job at a very low cost.
In mission critical systems where stopping the application means start loosing money, any database engine pays for itself preety quickly.
My 2 cents,