Difference between "and" and "where" in joins

Whats the difference between

SELECT DISTINCT field1 
  FROM table1 cd  
  JOIN table2 
    ON     cd.Company = table2.Name 
       and table2.Id IN (2728) 

and

SELECT DISTINCT field1 
  FROM table1 cd  
  JOIN table2 
    ON cd.Company = table2.Name 
 where table2.Id IN (2728) 

both return the same result and both have the same explain output