cat /tmp/file|\
while read FILE
do
  while $(FILE|cut -d: -f1)=Media$i
  do
    #here will be some test, ex:
    #if Media ID < 23
    #then...
  done
  let i=i+1
done

cat /tmp/file|\
while read FILE
do
  while $(FILE|cut -d: -f1)=Media$i
  do

while [ "$(echo ${FILE}|cut -d: -f1)." = "Media$i." ]

#! /usr/bin/ksh

exec < file
while read line ; do
        [[ "$line" = *"Media ID="* ]] && echo ${line#*=}
        [[ "$line" = *"Type="* ]] && echo ${line#*=}
done
exit 0