BGF is written at the Beijing Genomics Institute (BGI). It is a hidden Markov
model (HMM) and dynamic programming based ab initio gene prediction program.
The size of input file is limited to 10MB. And there could be multiple sequences in your input file.
Related publication: Test Data Sets and Evaluation of Gene Prediction Programs on the Rice Genome. Supplemental material, include OsSNG550, OsMTG62 and a README file can be downloaded from here.