Remove <CR><LF> from the dat file in unix

Hi,

The source system has created the file in the dat format and put into the linux directory as mentioned below. I want to do foloowing things.

a) Delete the Line started with <CR><LF> in the record
b)Also line
...........................................................<CR><LF>

Source file

PCEXT.DAT P<CR><LF>
BATCH HRIS<CR><LF>
<CR>LF>
E 0003547-620-955 55FTM SHHC 520601810914 2<CR><LF>
F1 0003001Gordon_Davan 243 Consumers Road<CR><LF>
H 0003999 1 D 10 9042 0648639<CR><LF>
...........................................................<CR><LF> J 0003 1 763400 0<CR><LF>
J 0003 2ONN 6 00050001<CR><LF>
J 0003 6ONN 3 12100100<CR><LF>
LA 0003###-####<CR><LF>
LB 0003810914 13<CR><LF>
<CR>LF>
E 0003547-620-955 55FTM SHHC 520601810914 2<CR><LF>
F1 0003001Gordon_Davan 243 Consumers Road<CR><LF>
H 0003999 1 D 10 9042 0648639<CR><LF>
...........................................................<CR><LF> J 0003 1 763400 0<CR><LF>
J 0003 2ONN 6 00050001<CR><LF>
J 0003 6ONN 3 12100100<CR><LF>
LA 0003###-####<CR><LF>
LB 0003810914 13<CR><LF>
<CR>LF>

Output file should be like this .
PCEXT.DAT P<CR><LF>
BATCH HRIS<CR><LF>
E 0003547-620-955 55FTM SHHC 520601810914 2<CR><LF>
F1 0003001Gordon_Davan 243 Consumers Road<CR><LF>
H 0003999 1 D 10 9042 0648639<CR><LF>
J 0003 1 763400 0<CR><LF>
J 0003 2ONN 6 00050001<CR><LF>
J 0003 6ONN 3 12100100<CR><LF>
LA 0003###-####<CR><LF>
LB 0003810914 13<CR><LF>
E 0003547-620-955 55FTM SHHC 520601810914 2<CR><LF>
F1 0003001Gordon_Davan 243 Consumers Road<CR><LF>
H 0003999 1 D 10 9042 0648639<CR><LF>
J 0003 1 763400 0<CR><LF>
J 0003 2ONN 6 00050001<CR><LF>
J 0003 6ONN 3 12100100<CR><LF>
LA 0003###-####<CR><LF>
LB 0003810914 13<CR><LF>

OK you probably need:
This

grep -v '^\.*$' infile

or this

sed -e 's/^\.*<CR><LF>//' -e '/^$/d' infile

Depending if "<CR><LF>" represents the CR and LF control characters or the literal strings.