That's correct. I actually don't know what my avg. record set is and doesn't make much sense to determine this that way because it largely depends on the type of record set. Book or OPRA feed generally requires more space than lvl1 equities feed. If you'd ask about compression rate, I think I'm somewhere in the 60-75% range compared to my older binary database with an about 50% performance gain for compression and 40% for decompression.