Paph planted in soil

[SydneyH]

A local orchid club had an orchid auction this past week and I bought my first two paphs. One of them is planted in a standard bark mix. The other paph is from a collection of a member who passed away last year. It looks like it's labeled as Paph. maudiae x paph. philippenense and it's planted in what looks and smells like a mixture of potting soil with a bit of standard bark mix thrown in. Is this what it should be planted in or can I repot it in a bark mix. I checked the roots today and they look pretty good.

Sydney