There are infact three bands called Aceldama:
One is a death metal/grindcore outfit from Costa Rica.
One was a US thrash metal band in the mid 90's who released only one album called "Blood".
The other is a Birmingham, UK based rock band. Bio as follows:
The Birmingham based, Aceldama, were formed in 2005 with the ideology of producing songs which ‘incorporate brutal, pinch harmonic grooves, with atmospheric harmonies and infectious hooks.’ After writing their first few songs Read more on Last.fm