[ag@giggitybytes ~]$ cat latt-test
<ASX version = "3.0">
<Entry><Ref href = "mms://a484.l2549553488.c25495.n.lm.akamaistream.net/D/484/25495/v0001/reflector:53488" /></Entry>
</ASX>
[ag@giggitybytes ~]$ cat latt-test | sed 's/.*ASX.*>//g;s/<.*=\ "//g;s/".*//g'

mms://a484.l2549553488.c25495.n.lm.akamaistream.net/D/484/25495/v0001/reflector:53488