Key and data segments contain differing number of records.?

[Robert]

Hello,
We were in the middle of adding 60 79 character fields when we ran out 
of disk space.
The file is qualified as follows:
key
keyhouston
keydallas
keytran

All of the files work except the ones for key and keytran.
The map is still the original structure map.tmp is the new structure.

We have tried using dexpand to add a record but it shows that 0 records 
can be added and will not let us add one.

Is there any way to salvage this data?
We have backups from the night before but we will lose 1 day worth of data.
Any suggestions would be most appreciated.
Thank you
Robert