Dumphive and the unicode registry strings

The handy dumphive utility will list out registry and SAM files, but a lot of the content is left as unicode strings represented as octet sequences like this:

"\\DosDevices\\E:"=hex:5c,00,3f,00,3f,00,5c,00,53,00,54,00,4f,00,52,00,41,00,\
  47,00,45,00,23,00,52,00,65,00,6d,00,6f,00,76,00,61,00,62,00,6c,00,65,00,4d,\
  00,65,00,64,00,69,00,61,00,23,00,37,00,26,00,31,00,66,00,65,00,39,00,65,00,\
  35,00,63,00,34,00,26,00,30,00,26,00,52,00,4d,00,23,00,7b,00,35,00,33,00,66,\
  00,35,00,36,00,33,00,30,00,64,00,2d,00,62,00,36,00,62,00,66,00,2d,00,31,00,\
  31,00,64,00,30,00,2d,00,39,00,34,00,66,00,32,00,2d,00,30,00,30,00,61,00,30,\
  00,63,00,39,00,31,00,65,00,66,00,62,00,38,00,62,00,7d,00

Well, you can pick your way through that with an ASCII table, but here's a bone-headed script to get the gist out.

use strict;
use warnings;
my $av=join(',' , @ARGV) ;
foreach my $c (split(/,+/,$av)){
    if (my $a=oct("0x$c")) {
        printf "%c", $a;
    }
}

It would be cooler to read the blocks directly -- backslashes and all. Maybe next time. Anyway, all you have to do is figure out what

\??\STORAGE#RemovableMedia#7&1fe9e5c4&0&RM#{53f5630d-b6bf-11d0-94f2-00a0c91efb8b}

means.