Unfortunately the dataset is not in a simple field-delimited format, ie. where each line is a record consisting of fields separated by a delimiter like comma, pipe, or tab. If it were, you could define the delimiter on LOAD with USING PigStorage('delim') where delim would be an actual delimiter like , or | or \t. The million song data is structured in a HDF5 format, which is a complex hierarchical structure with both metadata and field data. See https://labrosa.ee.columbia.edu/millionsong/sites/default/files/AdditionalFiles/FileSchema.pdf You need to use a wrapper API to work with it: https://labrosa.ee.columbia.edu/millionsong/pages/hdf-what https://support.hdfgroup.org/downloads/ In your case, you would need to use the wrapper API to iterate the data and output it into a delimited format. Then you could load it to pig as described above. In addition to the above links, this link is generally useful for your data set: https://labrosa.ee.columbia.edu/millionsong/faq ... View more