I am working in a real state project (linux, drupal, php 5, mysql) and I need to pull data in from the local mls sytem.
What data structure should I use IDX or RETS? (and why?)
Thank you
Well. Don't know these format myself (therefore sorry if this answer won't be satisfying to you), but a quick search revealed few already existing Drupal modules which seem to do what you are looking for:
and few example discussions on the subject:
But perhaps you've already seen them?