[EP-underground] Batch data loading

Hello everybody,

I came across ePrints function of entering metadata in bulk in the list.

I would like to know more about the following:
1) are there any tools/steps provided by ePrints software for loading a large amount of full-text files and metadata into ePrints?
2) in what format the metadata and uploaded files has to be in order that ePrints software can perform the batch uploading?
3) according to your experience, do you have any idea of how long it takes and how many people are involved in doing so?
4) in our planning stage, we would also like to know about any difficulties encountered by the former adopters in preparing the data and uploading the data.

Thanks.

Peter Law