[Freeswitch-users] mod_cdr_csv vs mod_xml_cdr

Hello, I am currently using mod_cdr_csv and a perl script (every 5 min) to insert into DB. I tested with live traffic of around 500 CDR per hour but every hour I see a difference of 4-5 CDR with my carrier. These CDR are of various durations ranging from 1 second to 600 seconds. I dont know how to debug this. As many suggested in mailing list that mod_xml_cdr is a better choice? I understand that XML cdr is good option where freeswitch instances are in many locations but Can the issue I am facing be related to mod_cdr_csv? Regards, John