 Most home recordings were made on even shorter-playing ten-inch or smaller discs.Some home disc recorders offered the option of the 33 rpm speed used for electrical transcriptions, allowing a recording more than twice as long to be made, although with reduced audio quality.Office dictation equipment was sometimes pressed into service for making recordings of radio broadcasts, but the audio quality of these devices was poor and the resulting recordings were in odd formats that had to be played back on similar equipment.