You would have to have two tables.
Record Table
Record_ID (primary key)
[ record information... ]
Record_Files Table
RecordFile_ID (primary key) <-- not entirely necessarly, but might be useful
Record_ID_FR Foreign Key that points to a Record Table Entry
Filename
For example:
These entries in Record
0 Joe .... more of joe's info...
1 Max ....
2 Dani .... Record_Files
0 0 JoeFile1
1 0 JoeFile2
2 1 MaxFile
3 0 JoeFile3
4 2 DaniFile
To find Joe's files, you know Joe's ID is 0, so get all from Record_Files that has the Record_ID_FR = 0.
Good luck! I'd recommend picking up a book on database design practices. Usually just reading the intro chapter can give you a good idea of how to do things.
Ed