volume  discs  episodes     region 1 release   region 2 release     region 4 release
0        1      1         5    october 30 , 2007       not released        june 1 , 2010
1        2      1         5    january 22 , 2008       not released  september 23 , 2010
2        3      1         5         may 6 , 2008       not released     october 7 , 2010
3        4      1         6       july 29 , 2008       not released    november 4 , 2010
4  box set      5        21  september 16 , 2008  february 1 , 2010    december 2 , 2010

Table as JSON:
{"volume":{"0":"1","1":"2","2":"3","3":"4","4":"box set"},"discs":{"0":1,"1":1,"2":1,"3":1,"4":5},"episodes":{"0":5,"1":5,"2":5,"3":6,"4":21},"region 1 release":{"0":"october 30 , 2007","1":"january 22 , 2008","2":"may 6 , 2008","3":"july 29 , 2008","4":"september 16 , 2008"},"region 2 release":{"0":"not released","1":"not released","2":"not released","3":"not released","4":"february 1 , 2010"},"region 4 release":{"0":"june 1 , 2010","1":"september 23 , 2010","2":"october 7 , 2010","3":"november 4 , 2010","4":"december 2 , 2010"}}