This is a weekly top 20 Radio airplay chart. To qualify an album must have a minimum of two different tracks played on two different radios that week. Based on the aiplay of 30 different radios from the Snep (Ifpi) panel (24hours a day), this airplay chart is weighted by the stations audience figure (Quarterly hour method). All chartered albums have been released within the past 12 calendar month. Chart positions are being established taking the cumulated audience per title into account on the given week. Time period; : Week starting Friday 00.00 and ending Thursday 24.00 24 hours a day radio monitoring SNEP (Ifpi) Panel(30 stations) : 8 Networks : NRJ, Fun Radio, Skyrock, Europe2, RTL2, Chérie FM RFM et MFM. 5 Low Rotations radios : RTL, Europe1, France Inter, Sud Radio et France Bleu. 17 Independent Local Radios (ILR) : Ado FM, Alouette, Champagne FM, Contact FM, FIP, Kiss FM, Le Mouv', MTI, Oui FM, Radio 6, Scoop, Thollon, Top Music, Vibration, Vitamine, Voltage FM et Wit FM. Audience : Monitored by Mediametrie - QHM in thousands. National Radios - Networks and Low Rotation Radios - Audience Monday-Friday / Saturday / Sunday monitored by Médiamétrie Paris Area Radios - Audience Monday-Friday / Saturday / Sunday monitored by Médiamétrie ILRs - Audience Monday-Friday monitored by Médiamétrie For any additional enquiry please contact Didier Zerath