PTF Disc 5 of 4 ???

Greetings,

I've got a PTF question and any thoughts would be appreciated.  We're at
V5R1.  Last week a cum PTF order that I had placed came in.  The cum
consisted of 5 CD's all labeled C3175510_xx (xx=01, 02, etc. thru 05).
When I did the GO PTF option #8 and selected all PTF's it displayed 1 of 4,
2 of 4, etc as they were loading.  It never used the 5th CD.  Is it likely
that this CD has the cover letters, additional PTF's, or it's just a
coaster they sent as a promotion?  I've loaded PTF's before but as long as
I can remember it's always asked for all of the CD's or tapes.

When I do a DSPOPT I get:

                       Display Optical Volume Attributes

   Volume . . . . . . . . . . . . . . . :   C3175510_05
   Device . . . . . . . . . . . . . . . :   OPT01
   Authorization list . . . . . . . . . :   QOPTSEC

 Volume Header Information:
   Internal Volume ID . . . . . . . . . :   C3175510_05
   Serial Number  . . . . . . . . . . . :
   Volume type  . . . . . . . . . . . . :   *PRIMARY
   Media type . . . . . . . . . . . . . :   *CD-ROM
   Media format . . . . . . . . . . . . :   *ISO9660
   Coded character set ID . . . . . . . :   500
   Volume-full threshold  . . . . . . . :   100
   Volume sequence number . . . . . . . :   1
   Create date  . . . . . . . . . . . . :   06/18/03
   Create time  . . . . . . . . . . . . :   06:41:00
   Text . . . . . . . . . . . . . . . . :   OS/400 Cumulative PTFs


Any ideas?  Thanks.

Dave Parnin
Nishikawa Standard Company
Topeka, IN  46571
daparnin@xxxxxxxxxxxxxxxxxx