#!/usr/bin/perl

local $/="";

while (<DATA>) {
  my ( $name, $address, $url ) = split /<br \/>/, $_;

  print "Got $name $address $url\n";
}

__DATA__
Name<br />
Address<br />
URL<br /><br />

Name2<br />
Address2<br /><br />

[download]
P.S. you can chomp if you want to...

Update:
(...you can leave your friends behind, 'cause your friends don't chomp and if they don't chomp, well they're no friends of mine) - sorry, I had to...

In case of no newlines as separator: 
#!/usr/bin/perl

local $/="<br /><br />";

while (<DATA>) {
  s/^\s*// && s/\s*$//;
  my ( $name, $address, $url ) = split /<br \/>/, $_;

  print "Got $name $address $url\n";
}

__DATA__
Name<br />
Address<br />
URL<br /><br />

Name2<br />
Address2<br /><br />

[download]

In reply to Re: Regexp with optional group containing backreference by Transient
in thread Regexp with optional group containing backreference by knewter

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