in reply to Amazon S3 Backup Serialize

The documentation of Net::Amazon::S3 reads for add_key thusly:
add_key
DEPRECATED. DO NOT USE

So, you shouldn't use that.

What are my options for serializing about 2G of files (jpgs / mp4s / docs) in a directory tree to replace 'T' in the following???

I took two question signs off your question to stick them over my eyebrows. I just can't figure what you are asking for. Replace 'T'? easy:

$value =~ s/T/A/;

Why would you need 2G of data for that?

--shmem

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}