I don't have an exact answer to your question, but I think the reason 
is that familysearch.com is sometimes incomplete.

This has happened to be on serveral occassions where I have a record 
but it doesn't list a source batch no. or film no.  But then I look 
at it a couple of months later and it has a source.  Or it has a 
source and I print it out and then a couple of months later I look at 
it again and it is slightly different.  So I print that version out 
too.

Also, sometimes there is a differences between IGI and VRI.  That 
same record looks slighty different in VRI.  Here it is:

Maria Maccedonia <MARQUES ESCOVEDO>    
  Sex: F

Event(s):     
 Christening: 08 Aug 1787  Place: Tepechitlan, Zacatecas, Mexico 

Parents:     
  Father: Josef Romualdo MARQUES 
  Mother: Juana Maria ESCOVEDO 

Source Information:     
  Batch Number: C606165 
  Source Dates: 1783 - 1802 
  Film or Fiche Number: 444026 
  Collection Details: Catolica 

Good Luck,
Angie

--- In ranchos@yahoogroups.com, Joseph Puentes <makas@n...> wrote:
> I need some insight. This record came up and I don't know what to 
make 
> of it. Usually there is a film number associated with the film but 
only 
> a batch number appears. If I go to Tepechitlan I can see that the 
film 
> that should be associated with this date should be:
> 
> Bautismos 1783-1811 FHL INTL Film    444026
> 
> would anyone have any insight as to why this number didn't appear 
with 
> the following record unless maybe it shouldn't be associated with 
it?:
>
> 
> thanks,
> 
> joseph